{ "schemaVersion": "1.0", "meta": { "title": "SoilCommander Garden Layout Planner — UK crop knowledge base", "generatedOn": "2026-07-17", "provenance": "Built from a Gemini Deep Research report anchored on RHS (rhs.org.uk) and Garden Organic, UK conditions.", "layoutModel": "Intensive block / grid planting (equidistant spacing).", "unitPolicy": "Metric (cm, plants per m2). Month numbers 1-12, baseline Central UK.", "dataIntegrity": "No values invented. UNVERIFIED source fields are null and flagged. Derived values (block spacing, plants/m2 from in-row, harvest from days-to-maturity, season->month mapping) are labelled in each crop's 'flags'.", "nitrogenFixationNote": "Cross-source dispute: RHS presents legumes as fixing nitrogen that benefits neighbouring crops during the season (basis of 'Three Sisters'); Garden Organic states the legume uses that nitrogen for its own pods and only releases it when the plant is cut down and roots decompose. The tool should treat the Three Sisters pairing as Tier-1 for PHYSICAL support/shade, and label the in-season nitrogen benefit as disputed rather than asserting it.", "cropCount": 38 }, "rotationGroups": { "legumes": { "label": "Legumes", "note": "Nitrogen-fixing; brassicas benefit following them. Peas & beans." }, "brassicas": { "label": "Brassicas", "note": "Clubroot & cabbage root fly risk; net & rotate. Cabbage, kale, roots like turnip/swede/radish/rocket." }, "alliums": { "label": "Onion family", "note": "White rot persists in soil for years; long rotation. Onion, garlic, leek, shallot, spring onion." }, "solanaceae": { "label": "Potato & tomato family", "note": "Blight-prone heavy feeders; keep apart & rotate hard. Potato, tomato, pepper, aubergine." }, "roots": { "label": "Roots / umbellifers", "note": "Carrot fly risk. Carrot, parsnip, beetroot, celery, celeriac." }, "cucurbits": { "label": "Cucurbits", "note": "Hungry, sprawling, frost-tender. Courgette, squash, pumpkin, cucumber." }, "flexible": { "label": "Flexible / other", "note": "Low rotation constraint; useful gap-fillers. Lettuce, spinach, chard, sweetcorn." }, "perennial": { "label": "Perennials", "note": "Pinned, out of rotation. Strawberry, rhubarb, asparagus." } }, "companionPlantsGlossary": { "French marigold (Tagetes)": { "benefit": "Trap crop drawing whitefly away from tomatoes; roots also suppress some nematodes.", "tier": 1, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" }, "Nasturtium": { "benefit": "Sacrificial trap crop that lures blackfly/aphids away from beans and brassicas.", "tier": 1, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" }, "Clover / trefoil (living mulch)": { "benefit": "Undersowing brassicas disrupts the cabbage root fly's visual detection of the crop.", "tier": 1, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" }, "Sweet alyssum (Lobularia maritima)": { "benefit": "Nectar attracts hoverflies and parasitic wasps that predate aphids on lettuce.", "tier": 1, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" }, "Basil": { "benefit": "Traditionally interplanted with tomatoes; limited empirical support for pest deterrence.", "tier": 2, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } }, "crops": [ { "id": "tomato", "name": "Tomato (outdoor / cordon)", "botanicalName": "Solanum lycopersicum", "family": "Solanaceae", "rotationGroup": "solanaceae", "rotationRole": "fruiting_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "cordon", "matureHeightCm": null, "matureSpreadCm": null, "support": true, "supportNote": "Tall canes or string; heavy fruit load.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": { "min": 35, "max": 45 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 4.9, "blockSpacingCm": 45, "confidence": "derived_inrow" }, "calendar": { "sow": [ 2, 3, 4 ], "plantOut": [ 5 ], "harvest": [ 7, 8, 9 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Tomato blight", "type": "disease", "organicControl": "Use resistant cultivars; keep foliage dry; rotate away from potatoes.", "watchMonths": [ 6, 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/tomatoes/grow-your-own" }, { "name": "Blossom end rot", "type": "disorder", "organicControl": "Water consistently to maintain calcium uptake.", "watchMonths": [ 7, 8, 9 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/in-month/september-jobs" } ], "companions": { "allies": [ { "partner": "French marigold (Tagetes)", "tier": 1, "reason": "Trap crop draws whitefly off the foliage.", "inCropSet": false, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" }, { "partner": "Basil", "tier": 2, "reason": "Traditional pairing; weak evidence for pest deterrence.", "inCropSet": false, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } ], "avoid": [ { "partner": "potato", "tier": 3, "reason": "Shared susceptibility to late blight (Phytophthora infestans).", "inCropSet": true, "source": "https://www.rhs.org.uk/vegetables/tomatoes/grow-your-own" } ] }, "fieldNotes": null, "flags": [ "spacing_derived_from_inrow", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/tomatoes/grow-your-own", "https://www.rhs.org.uk/advice/grow-your-own/containers/may-edible-container-idea" ] }, { "id": "potato-maincrop", "name": "Potato (maincrop)", "botanicalName": "Solanum tuberosum", "family": "Solanaceae", "rotationGroup": "solanaceae", "rotationRole": "tuber_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "mounded", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": "No support; earth up stems as they grow.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 30, "max": 38 }, "betweenRowCm": { "min": 38, "max": 50 }, "plantsPerSqMSource": { "min": 5.2, "max": 8.7 }, "planningPlantsPerSqM": 6.0, "blockSpacingCm": 41, "confidence": "verified" }, "calendar": { "sow": [ 4 ], "plantOut": [ 4 ], "harvest": [ 8, 9, 10 ], "protect": [ 6, 7, 8, 9 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Potato blight", "type": "disease", "organicControl": "Remove top growth at first sign; grow certified seed; rotate.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/spring-potato-tips" }, { "name": "Potato scab", "type": "disease", "organicControl": "Rotate crops; avoid dry soil; add fresh compost.", "watchMonths": [ 8, 9 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/spring-potato-tips" } ], "companions": { "allies": [], "avoid": [ { "partner": "tomato", "tier": 3, "reason": "Shared blight (Phytophthora infestans); never co-locate.", "inCropSet": true, "source": "https://www.rhs.org.uk/vegetables/tomatoes/grow-your-own" } ] }, "fieldNotes": null, "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/potatoes/grow-your-own", "https://www.rhs.org.uk/advice/grow-your-own/features/spring-potato-tips", "https://www.rhs.org.uk/education-learning/school-gardening/resources/food-growing/vegetable-crop-planner" ] }, { "id": "carrot", "name": "Carrot", "botanicalName": "Daucus carota", "family": "Apiaceae", "rotationGroup": "roots", "rotationRole": "root_light_feeder", "nitrogenFixer": false, "feeder": "light", "feederConfidence": "verified", "sun": "full", "heightClass": "low", "habit": "root", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 5, "max": 7.5 }, "betweenRowCm": { "min": 15, "max": 30 }, "plantsPerSqMSource": { "min": 33, "max": 133 }, "planningPlantsPerSqM": 100.0, "blockSpacingCm": 10, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5, 6, 7 ], "plantOut": [], "harvest": [ 5, 6, 7, 8, 9, 10 ], "protect": [ 4, 5, 6, 7, 8, 9 ], "daysToMaturity": 90, "confidence": "explicit", "seasonMapped": false, "harvestDerived": true }, "pests": [ { "name": "Carrot fly", "type": "pest", "organicControl": "Cover with fine insect-proof mesh/fleece; avoid thinning in still air; resistant cultivars.", "watchMonths": [ 4, 5, 6, 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/carrots/grow-your-own" } ], "companions": { "allies": [ { "partner": "onion", "tier": 2, "reason": "Traditional scent-masking; trials inconsistent — mesh is more reliable.", "inCropSet": true, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } ], "avoid": [] }, "fieldNotes": null, "flags": [ "harvest_derived_from_days_to_maturity" ], "sources": [ "https://www.rhs.org.uk/vegetables/carrots/grow-your-own" ] }, { "id": "onion-sets", "name": "Onion (from sets)", "botanicalName": "Allium cepa", "family": "Amaryllidaceae", "rotationGroup": "alliums", "rotationRole": "allium", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "bulb", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 5, "max": 15 }, "betweenRowCm": { "min": 20, "max": 30 }, "plantsPerSqMSource": { "min": 22, "max": 100 }, "planningPlantsPerSqM": 60.0, "blockSpacingCm": 13, "confidence": "verified" }, "calendar": { "sow": [ 1, 2, 3, 4 ], "plantOut": [ 3, 4, 9 ], "harvest": [], "protect": [ 3, 4, 9 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Birds", "type": "pest", "organicControl": "Fleece/net until sets are rooted (birds tug them out).", "watchMonths": [ 3, 4, 9 ], "source": "https://www.rhs.org.uk/vegetables/onions/grow-your-own" }, { "name": "Onion white rot", "type": "disease", "organicControl": "No cure in soil — enforce strict long rotation.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/in-month/september-jobs" } ], "companions": { "allies": [ { "partner": "carrot", "tier": 2, "reason": "Traditional reciprocal scent-masking; mixed evidence.", "inCropSet": true, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } ], "avoid": [] }, "fieldNotes": "Harvest month UNVERIFIED in source (typically mid/late summer).", "flags": [ "harvest_months_unverified", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/onions/grow-your-own" ] }, { "id": "shallot", "name": "Shallot", "botanicalName": "Allium cepa var. aggregatum", "family": "Amaryllidaceae", "rotationGroup": "alliums", "rotationRole": "allium", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "bulb", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 10, "max": 10 }, "betweenRowCm": { "min": 25, "max": 25 }, "plantsPerSqMSource": { "min": 40, "max": 40 }, "planningPlantsPerSqM": 40.0, "blockSpacingCm": 16, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4 ], "plantOut": [ 3, 4, 5 ], "harvest": [ 6, 7, 8 ], "protect": [ 3, 4, 5 ], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Onion neck rot", "type": "disease", "organicControl": "Cure and dry-store well; usually appears in storage.", "watchMonths": [ 12, 1 ], "source": "https://www.rhs.org.uk/vegetables/shallots/grow-your-own" }, { "name": "Onion fly / leek moth", "type": "pest", "organicControl": "Physical insect-proof mesh.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/vegetables/shallots/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Companions UNVERIFIED in source.", "flags": [ "calendar_season_mapped", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/shallots/grow-your-own" ] }, { "id": "spring-onion", "name": "Spring onion", "botanicalName": "Allium fistulosum / A. cepa", "family": "Amaryllidaceae", "rotationGroup": "alliums", "rotationRole": "allium", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "bulb", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 2.5, "max": 2.5 }, "betweenRowCm": { "min": 20, "max": 20 }, "plantsPerSqMSource": { "min": 200, "max": 200 }, "planningPlantsPerSqM": 200.0, "blockSpacingCm": 7, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5, 6, 7, 8 ], "plantOut": [ 4, 5 ], "harvest": [ 3, 4, 5, 6, 7, 8, 9 ], "protect": [], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Onion downy mildew", "type": "disease", "organicControl": "Avoid dense sowing; keep airflow.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/salad-onions/grow-your-own" }, { "name": "Slugs", "type": "pest", "organicControl": "Biological/nematode control in damp weather.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/vegetables/salad-onions/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Companions UNVERIFIED. Sow successionally for continuity.", "flags": [ "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/salad-onions/grow-your-own" ] }, { "id": "leek", "name": "Leek", "botanicalName": "Allium porrum", "family": "Amaryllidaceae", "rotationGroup": "alliums", "rotationRole": "allium", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "medium", "habit": "upright", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": "No support; earth up to blanch stems.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 20 }, "betweenRowCm": { "min": 30, "max": 30 }, "plantsPerSqMSource": { "min": 16.6, "max": 22 }, "planningPlantsPerSqM": 20.0, "blockSpacingCm": 22, "confidence": "verified" }, "calendar": { "sow": [ 3, 4 ], "plantOut": [ 5, 6, 7 ], "harvest": [ 9, 10, 11, 12, 1, 2 ], "protect": [], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Leek rust", "type": "disease", "organicControl": "Resistant cultivars; avoid crowding for airflow.", "watchMonths": [ 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/leeks/grow-your-own" }, { "name": "Allium leaf miner", "type": "pest", "organicControl": "Insect-proof mesh over the crop.", "watchMonths": [ 3, 4, 10, 11 ], "source": "https://www.rhs.org.uk/vegetables/leeks/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Companions UNVERIFIED. Long bed occupancy (autumn-winter standing crop).", "flags": [ "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/leeks/grow-your-own", "https://www.rhs.org.uk/plants/106043/allium-porrum/details" ] }, { "id": "garlic", "name": "Garlic", "botanicalName": "Allium sativum", "family": "Amaryllidaceae", "rotationGroup": "alliums", "rotationRole": "allium", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "bulb", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 15 }, "betweenRowCm": { "min": 30, "max": 30 }, "plantsPerSqMSource": { "min": 22, "max": 22 }, "planningPlantsPerSqM": 22.0, "blockSpacingCm": 21, "confidence": "verified" }, "calendar": { "sow": [ 11, 2, 3 ], "plantOut": [ 11, 2, 3 ], "harvest": [ 6, 7 ], "protect": [ 12, 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Slugs", "type": "pest", "organicControl": "Biological control on new spring growth.", "watchMonths": [ 3, 4 ], "source": "https://www.rhs.org.uk/plants/196810/allium-sativum-arno/details" }, { "name": "Leek rust", "type": "disease", "organicControl": "Space adequately for airflow.", "watchMonths": [ 6, 7 ], "source": "https://www.rhs.org.uk/plants/196810/allium-sativum-arno/details" } ], "companions": { "allies": [ { "partner": "strawberry", "tier": 2, "reason": "Chopped garlic leaves theorised to mask scent and repel aphids; weak evidence.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Autumn planting needs cold vernalisation. Long bed occupancy.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/garlic/grow-your-own", "https://www.rhs.org.uk/education-learning/school-gardening/resources/food-growing/vegetable-crop-planner" ] }, { "id": "runner-bean", "name": "Runner bean", "botanicalName": "Phaseolus coccineus", "family": "Fabaceae", "rotationGroup": "legumes", "rotationRole": "legume_nfixer", "nitrogenFixer": true, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "climber", "matureHeightCm": null, "matureSpreadCm": null, "support": true, "supportNote": "Tall wigwam/A-frame ~2 m. Place on north edge.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "unverified" }, "calendar": { "sow": [ 4, 5 ], "plantOut": [ 5, 6 ], "harvest": [ 7, 8, 9, 10 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Blackfly / aphids", "type": "pest", "organicControl": "Pinch out growing tips once at top of supports.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/runner-beans/grow-your-own" }, { "name": "Bean rust", "type": "disease", "organicControl": "Clear plant debris; rotate.", "watchMonths": [ 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/runner-beans/grow-your-own" } ], "companions": { "allies": [ { "partner": "sweetcorn", "tier": 1, "reason": "Three Sisters: corn provides a climbing frame (in-season N benefit disputed).", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" }, { "partner": "pumpkin", "tier": 1, "reason": "Three Sisters: squash/pumpkin shades soil, retains moisture.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" }, { "partner": "Nasturtium", "tier": 1, "reason": "Trap crop for blackfly.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" } ], "avoid": [] }, "fieldNotes": "SPACING UNVERIFIED (sow 2 per cane, thin to 1). Needs spacing before auto-placement.", "flags": [ "spacing_unverified_needs_input", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/runner-beans/grow-your-own" ] }, { "id": "french-bean-dwarf", "name": "French bean (dwarf)", "botanicalName": "Phaseolus vulgaris", "family": "Fabaceae", "rotationGroup": "legumes", "rotationRole": "legume_nfixer", "nitrogenFixer": true, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "bush", "matureHeightCm": { "min": 45, "max": 45 }, "matureSpreadCm": null, "support": false, "supportNote": "Short twigs keep pods off damp soil.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": { "min": 10, "max": 15 }, "betweenRowCm": { "min": 45, "max": 45 }, "plantsPerSqMSource": { "min": 14.8, "max": 22.2 }, "planningPlantsPerSqM": 18.0, "blockSpacingCm": 24, "confidence": "verified" }, "calendar": { "sow": [ 4, 5, 6 ], "plantOut": [ 5, 6 ], "harvest": [ 7, 8 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Bean seed fly", "type": "pest", "organicControl": "Exclude early sowings with fleece.", "watchMonths": [ 4, 5 ], "source": "https://www.rhs.org.uk/vegetables/french-beans/grow-your-own" }, { "name": "Bean rust", "type": "disease", "organicControl": "Strict crop rotation.", "watchMonths": [ 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/french-beans/grow-your-own" } ], "companions": { "allies": [ { "partner": "Nasturtium", "tier": 1, "reason": "Trap crop for blackfly.", "inCropSet": false, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } ], "avoid": [] }, "fieldNotes": null, "flags": [ "calendar_season_mapped", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/french-beans/grow-your-own" ] }, { "id": "broad-bean", "name": "Broad bean", "botanicalName": "Vicia faba", "family": "Fabaceae", "rotationGroup": "legumes", "rotationRole": "legume_nfixer", "nitrogenFixer": true, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "upright", "matureHeightCm": { "min": 50, "max": 50 }, "matureSpreadCm": null, "support": true, "supportNote": "Corner stakes linked with string.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 23 }, "betweenRowCm": { "min": 45, "max": 45 }, "plantsPerSqMSource": { "min": 9.6, "max": 14.8 }, "planningPlantsPerSqM": 12.0, "blockSpacingCm": 29, "confidence": "verified" }, "calendar": { "sow": [ 11, 12, 1, 3, 4 ], "plantOut": [ 3 ], "harvest": [ 6, 7, 8 ], "protect": [ 11, 12, 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Blackfly", "type": "pest", "organicControl": "Pinch out shoot tips once first pods set.", "watchMonths": [ 4, 5, 6 ], "source": "https://www.rhs.org.uk/vegetables/broad-beans/grow-your-own" }, { "name": "Pea & bean weevil", "type": "pest", "organicControl": "Tolerate leaf-notch damage on established plants.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/vegetables/broad-beans/grow-your-own" } ], "companions": { "allies": [ { "partner": "Nasturtium", "tier": 1, "reason": "Trap crop for blackfly.", "inCropSet": false, "source": "https://www.gardenorganic.org.uk/expert-advice/how-to-grow/how-to-grow-flowers/companion-or-mixed-planting" } ], "avoid": [] }, "fieldNotes": "'Aquadulce Claudia' type can be autumn-sown to overwinter in mild areas.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/broad-beans/grow-your-own" ] }, { "id": "pea", "name": "Pea", "botanicalName": "Pisum sativum", "family": "Fabaceae", "rotationGroup": "legumes", "rotationRole": "legume_nfixer", "nitrogenFixer": true, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "climber", "matureHeightCm": { "min": 45, "max": 180 }, "matureSpreadCm": null, "support": true, "supportNote": "Pea sticks or netting; place taller types on north edge.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 5, "max": 10 }, "betweenRowCm": { "min": 60, "max": 60 }, "plantsPerSqMSource": { "min": 33, "max": 33 }, "planningPlantsPerSqM": 33.0, "blockSpacingCm": 17, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5, 6 ], "plantOut": [ 3, 4 ], "harvest": [ 6, 7, 8, 9 ], "protect": [ 3, 4 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Mice", "type": "pest", "organicControl": "Start indoors (e.g. in guttering) to protect seed.", "watchMonths": [ 3, 4 ], "source": "https://www.rhs.org.uk/vegetables/peas/grow-your-own" }, { "name": "Powdery mildew", "type": "disease", "organicControl": "Deep, consistent watering in dry spells.", "watchMonths": [ 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/peas/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Companions UNVERIFIED.", "flags": [ "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/peas/grow-your-own" ] }, { "id": "cabbage", "name": "Cabbage (summer/autumn)", "botanicalName": "Brassica oleracea (Capitata)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "head", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": "No support; firm soil essential.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 45, "max": 60 }, "betweenRowCm": { "min": 60, "max": 60 }, "plantsPerSqMSource": { "min": 2.7, "max": 3.7 }, "planningPlantsPerSqM": 3.0, "blockSpacingCm": 58, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5, 6 ], "plantOut": [ 5, 6, 7 ], "harvest": [ 7, 8, 9, 10 ], "protect": [ 3, 4, 5, 6, 7 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Cabbage root fly", "type": "pest", "organicControl": "Fine mesh or cabbage collars at the stem base.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/vegetables/cabbages/grow-your-own" }, { "name": "Club root", "type": "disease", "organicControl": "Rotate; lime acidic soil; never repeat brassicas in same bed.", "watchMonths": [ 6, 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/cabbages/grow-your-own" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Undersowing disrupts cabbage root fly's visual detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": null, "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/cabbages/grow-your-own" ] }, { "id": "kale", "name": "Kale", "botanicalName": "Brassica oleracea (Acephala)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "medium", "habit": "leafy", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 30, "max": 30 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 11.1, "blockSpacingCm": 30, "confidence": "derived_inrow" }, "calendar": { "sow": [ 5, 6 ], "plantOut": [ 6, 7 ], "harvest": [ 11, 12, 1, 2 ], "protect": [], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Cabbage root fly", "type": "pest", "organicControl": "Insect-proof mesh; collars.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Disrupts cabbage root fly detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "In-row 30 cm (dwarf) is the only sourced spacing; between-row UNVERIFIED. Key 'hungry gap' winter crop.", "flags": [ "spacing_derived_from_inrow", "calendar_season_mapped", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/choosing-mini-vegetables" ] }, { "id": "broccoli-calabrese", "name": "Broccoli / calabrese", "botanicalName": "Brassica oleracea (Italica)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "head", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 20, "max": 20 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 25.0, "blockSpacingCm": 20, "confidence": "derived_inrow" }, "calendar": { "sow": [ 4, 5, 6 ], "plantOut": [ 6, 7 ], "harvest": [ 9, 10, 11, 12 ], "protect": [], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Cabbage root fly", "type": "pest", "organicControl": "Fine mesh covering.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/vegetables/chinese-cabbage/grow-your-own" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Disrupts cabbage root fly detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Sourced in-row 20 cm is for MINI heads; standard calabrese needs ~30 cm. Between-row UNVERIFIED.", "flags": [ "spacing_derived_from_inrow", "calendar_season_mapped", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/choosing-mini-vegetables" ] }, { "id": "cauliflower", "name": "Cauliflower", "botanicalName": "Brassica oleracea (Botrytis)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "head", "matureHeightCm": { "min": 50, "max": 100 }, "matureSpreadCm": { "min": 50, "max": 100 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 45, "max": 60 }, "betweenRowCm": { "min": 60, "max": 60 }, "plantsPerSqMSource": { "min": 2.7, "max": 3.7 }, "planningPlantsPerSqM": 3.0, "blockSpacingCm": 58, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5 ], "plantOut": [ 6, 7 ], "harvest": [ 8, 9, 10, 11 ], "protect": [ 3 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Cabbage caterpillars", "type": "pest", "organicControl": "Physical mesh barrier against Large/Small White butterflies.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/plants/346331/brassica-oleracea-(botrytis-group)-boris/details" }, { "name": "Club root", "type": "disease", "organicControl": "Crop rotation to prevent build-up.", "watchMonths": [ 6, 7, 8, 9 ], "source": "https://www.rhs.org.uk/plants/346331/brassica-oleracea-(botrytis-group)-boris/details" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Disrupts cabbage root fly detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Needs uninterrupted moisture — drought causes 'buttoning'.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/cauliflower/grow-your-own" ] }, { "id": "brussels-sprouts", "name": "Brussels sprouts", "botanicalName": "Brassica oleracea (Gemmifera)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_heavy_feeder", "nitrogenFixer": false, "feeder": "heavy", "feederConfidence": "verified", "sun": "full", "heightClass": "tall", "habit": "upright", "matureHeightCm": { "min": 50, "max": 100 }, "matureSpreadCm": { "min": 50, "max": 100 }, "support": true, "supportNote": "Sturdy cane in late summer; large sail area in autumn gales.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 60, "max": 60 }, "betweenRowCm": { "min": 60, "max": 60 }, "plantsPerSqMSource": { "min": 2.7, "max": 2.7 }, "planningPlantsPerSqM": 2.7, "blockSpacingCm": 61, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5 ], "plantOut": [ 6 ], "harvest": [ 9, 10, 11, 12 ], "protect": [ 11, 12, 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Cabbage root fly", "type": "pest", "organicControl": "Grow under insect-proof mesh.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/problems/brussels-sprouts-problems" }, { "name": "Pigeons", "type": "pest", "organicControl": "Taut netting over winter foliage.", "watchMonths": [ 11, 12, 1, 2 ], "source": "https://www.rhs.org.uk/problems/brussels-sprouts-problems" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Early-stage protection from cabbage root fly.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "RHS explicitly confirms HEAVY feeder (up to 300 g/m2 fertiliser).", "flags": [], "sources": [ "https://www.rhs.org.uk/vegetables/brussels-sprouts/grow-your-own", "https://www.rhs.org.uk/plants/2392/brassica-oleracea-gemmifera-group/details" ] }, { "id": "turnip", "name": "Turnip", "botanicalName": "Brassica rapa (Rapifera)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_root", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "root", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 15 }, "betweenRowCm": { "min": 30, "max": 30 }, "plantsPerSqMSource": { "min": 22, "max": 22 }, "planningPlantsPerSqM": 22.0, "blockSpacingCm": 21, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5, 6, 7, 8 ], "plantOut": [], "harvest": [ 5, 6, 7, 8, 9, 10, 11 ], "protect": [ 11, 12, 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Flea beetle", "type": "pest", "organicControl": "Fleece if severe; cosmetic damage often tolerable.", "watchMonths": [ 4, 5, 6 ], "source": "https://www.rhs.org.uk/plants/221572/brassica-rapa-rapifera-group-oasis/details" }, { "name": "Club root", "type": "disease", "organicControl": "Enforce crop rotation.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/plants/221572/brassica-rapa-rapifera-group-oasis/details" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Disrupts root fly detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Sow successionally; harvest young (golf-ball size).", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/turnips/grow-your-own" ] }, { "id": "swede", "name": "Swede", "botanicalName": "Brassica napus (Napobrassica)", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_root", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "root", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 25 }, "betweenRowCm": { "min": 30, "max": 45 }, "plantsPerSqMSource": { "min": 8.8, "max": 22 }, "planningPlantsPerSqM": 15.0, "blockSpacingCm": 26, "confidence": "verified" }, "calendar": { "sow": [ 4, 5, 6, 7 ], "plantOut": [], "harvest": [ 9, 10, 11, 12, 1, 2 ], "protect": [ 11, 12, 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Powdery mildew", "type": "disease", "organicControl": "Keep moisture consistent; mulch to avoid drought stress.", "watchMonths": [ 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/swede/grow-your-own" }, { "name": "Cabbage root fly", "type": "pest", "organicControl": "Mesh covering.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/vegetables/swede/grow-your-own" } ], "companions": { "allies": [ { "partner": "Clover / trefoil (living mulch)", "tier": 1, "reason": "Disrupts root fly detection.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": null, "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/swede/grow-your-own" ] }, { "id": "radish", "name": "Radish", "botanicalName": "Raphanus sativus", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_fast", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "root", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 1, "max": 5 }, "betweenRowCm": { "min": 15, "max": 15 }, "plantsPerSqMSource": { "min": 133, "max": 666 }, "planningPlantsPerSqM": 200.0, "blockSpacingCm": 7, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5, 6, 7, 8 ], "plantOut": [], "harvest": [ 3, 4, 5, 6, 7, 8, 9 ], "protect": [ 3 ], "daysToMaturity": 35, "confidence": "explicit", "seasonMapped": false, "harvestDerived": true }, "pests": [ { "name": "Flea beetle", "type": "pest", "organicControl": "Fleece over drills at sowing.", "watchMonths": [ 4, 5, 6 ], "source": "https://www.rhs.org.uk/vegetables/radishes/grow-your-own" }, { "name": "Slugs & snails", "type": "pest", "organicControl": "Nematode biocontrol in damp spring weather.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/vegetables/radishes/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "~4 weeks to harvest — ideal succession/gap-filler. Companions UNVERIFIED.", "flags": [ "harvest_derived_from_days_to_maturity", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/radishes/grow-your-own" ] }, { "id": "rocket", "name": "Rocket", "botanicalName": "Eruca vesicaria subsp. sativa", "family": "Brassicaceae", "rotationGroup": "brassicas", "rotationRole": "brassica_fast", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "leafy", "matureHeightCm": { "min": 50, "max": 100 }, "matureSpreadCm": { "min": 0, "max": 10 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 15 }, "betweenRowCm": { "min": 15, "max": 15 }, "plantsPerSqMSource": { "min": 44, "max": 44 }, "planningPlantsPerSqM": 44.0, "blockSpacingCm": 15, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5, 6, 7, 8, 9 ], "plantOut": [ 3, 4, 5 ], "harvest": [ 4, 5, 6, 7, 8, 9, 10 ], "protect": [ 3, 4 ], "daysToMaturity": 40, "confidence": "explicit", "seasonMapped": false, "harvestDerived": true }, "pests": [ { "name": "Flea beetle", "type": "pest", "organicControl": "Physical barrier; tolerate cosmetic shot-holes.", "watchMonths": [ 4, 5, 6, 7 ], "source": "https://www.rhs.org.uk/plants/73475/eruca-vesicaria-subsp-sativa/details" }, { "name": "Slugs & snails", "type": "pest", "organicControl": "Protect young plants / biocontrol.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/plants/73475/eruca-vesicaria-subsp-sativa/details" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Cut-and-come-again; sow successionally. Companions UNVERIFIED.", "flags": [ "harvest_derived_from_days_to_maturity", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/rocket/grow-your-own" ] }, { "id": "lettuce", "name": "Lettuce", "botanicalName": "Lactuca sativa", "family": "Asteraceae", "rotationGroup": "flexible", "rotationRole": "leafy_light", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "leafy", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 15, "max": 30 }, "betweenRowCm": { "min": 23, "max": 38 }, "plantsPerSqMSource": { "min": 8.7, "max": 28 }, "planningPlantsPerSqM": 16.0, "blockSpacingCm": 25, "confidence": "verified" }, "calendar": { "sow": [ 2, 3, 4, 5, 6, 7, 8, 9 ], "plantOut": [ 3, 4, 5, 6 ], "harvest": [ 5, 6, 7, 8, 9, 10 ], "protect": [ 3, 4, 10 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Slugs & snails", "type": "pest", "organicControl": "Nematode biocontrol or physical barrier.", "watchMonths": [ 3, 4, 9, 10 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-and-figures-lettuce" }, { "name": "Aphids", "type": "pest", "organicControl": "Encourage predators (see alyssum companion) or use trap crops.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-and-figures-lettuce" } ], "companions": { "allies": [ { "partner": "Sweet alyssum (Lobularia maritima)", "tier": 1, "reason": "Nectar draws hoverflies/parasitic wasps that eat aphids.", "inCropSet": false, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Partial shade in summer delays bolting. Sow successionally.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/lettuce/grow-your-own" ] }, { "id": "spinach", "name": "Spinach", "botanicalName": "Spinacia oleracea", "family": "Amaranthaceae", "rotationGroup": "flexible", "rotationRole": "leafy_light", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "leafy", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 8, "max": 15 }, "betweenRowCm": { "min": 30, "max": 30 }, "plantsPerSqMSource": { "min": 22, "max": 22 }, "planningPlantsPerSqM": 22.0, "blockSpacingCm": 21, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5, 9 ], "plantOut": [], "harvest": [ 10, 11, 12, 1, 2, 3, 4 ], "protect": [ 3 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Downy mildew", "type": "disease", "organicControl": "Avoid overcrowding; keep airflow.", "watchMonths": [ 5, 6, 9, 10 ], "source": "https://www.rhs.org.uk/vegetables/spinach/grow-your-own" }, { "name": "Pigeons", "type": "pest", "organicControl": "Netting over winter/spring foliage.", "watchMonths": [ 11, 12, 1, 2, 3 ], "source": "https://www.rhs.org.uk/vegetables/spinach/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Direct-sow only (transplanting triggers bolting). Companions UNVERIFIED.", "flags": [ "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/spinach/grow-your-own" ] }, { "id": "swiss-chard", "name": "Swiss chard", "botanicalName": "Beta vulgaris subsp. cicla", "family": "Amaranthaceae", "rotationGroup": "flexible", "rotationRole": "leafy_light", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "low", "habit": "leafy", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 10, "max": 10 }, "betweenRowCm": { "min": 45, "max": 45 }, "plantsPerSqMSource": { "min": 22, "max": 22 }, "planningPlantsPerSqM": 22.0, "blockSpacingCm": 21, "confidence": "verified" }, "calendar": { "sow": [ 3, 4, 5, 6, 7 ], "plantOut": [ 4, 5, 6, 7 ], "harvest": [ 6, 7, 8, 9, 10 ], "protect": [], "daysToMaturity": 84, "confidence": "explicit", "seasonMapped": false, "harvestDerived": true }, "pests": [ { "name": "Grey mould", "type": "disease", "organicControl": "Space well for airflow in humid weather.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-chard" }, { "name": "Birds", "type": "pest", "organicControl": "Taut netting over emerging seedlings.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-chard" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Companions UNVERIFIED.", "flags": [ "harvest_derived_from_days_to_maturity", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/chard/grow-your-own" ] }, { "id": "beetroot", "name": "Beetroot", "botanicalName": "Beta vulgaris", "family": "Amaranthaceae", "rotationGroup": "roots", "rotationRole": "root_light_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "root", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": { "min": 10, "max": 10 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 100.0, "blockSpacingCm": 10, "confidence": "derived_inrow" }, "calendar": { "sow": [ 3, 4, 5, 6, 7 ], "plantOut": [ 3, 4, 5 ], "harvest": [ 6, 7, 8, 9, 10 ], "protect": [ 11, 12, 1, 2 ], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Hard frost (disorder)", "type": "disorder", "organicControl": "Insulate with 30 cm straw/bracken for over-winter storage in ground.", "watchMonths": [ 11, 12, 1, 2 ], "source": "https://www.rhs.org.uk/vegetables/root-vegetables-storing" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Only in-row (10 cm) sourced; between-row UNVERIFIED. Multi-sow clusters common. Companions UNVERIFIED.", "flags": [ "spacing_derived_from_inrow", "calendar_season_mapped", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/beetroot/grow-your-own" ] }, { "id": "parsnip", "name": "Parsnip", "botanicalName": "Pastinaca sativa", "family": "Apiaceae", "rotationGroup": "roots", "rotationRole": "root_light_feeder", "nitrogenFixer": false, "feeder": "light", "feederConfidence": "verified", "sun": "full-or-partial", "heightClass": "low", "habit": "root", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "direct", "spacing": { "inRowCm": null, "betweenRowCm": { "min": 30, "max": 30 }, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "partial" }, "calendar": { "sow": [ 4, 5 ], "plantOut": [], "harvest": [ 9, 10, 11, 12, 1, 2, 3 ], "protect": [], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Carrot fly", "type": "pest", "organicControl": "Insect-proof mesh; don't sow in recent carrot beds.", "watchMonths": [ 6, 7, 8, 9 ], "source": "https://www.rhs.org.uk/vegetables/parsnips/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Only between-row (30 cm) sourced; in-row UNVERIFIED. Direct-sow only. Companions UNVERIFIED.", "flags": [ "spacing_partial_source", "calendar_season_mapped", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/parsnips/grow-your-own" ] }, { "id": "celery", "name": "Celery", "botanicalName": "Apium graveolens", "family": "Apiaceae", "rotationGroup": "roots", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": "heavy", "feederConfidence": "verified", "sun": "full-or-partial", "heightClass": "low", "habit": "upright", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": "Trench types blanched by earthing/collars.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 23, "max": 23 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 18.9, "blockSpacingCm": 23, "confidence": "derived_inrow" }, "calendar": { "sow": [ 3, 4 ], "plantOut": [ 5, 6 ], "harvest": [ 8, 9, 10 ], "protect": [], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Celery leaf spot", "type": "disease", "organicControl": "Cultural control; use clean seed.", "watchMonths": [ 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/celery/grow-your-own" }, { "name": "Slugs & snails", "type": "pest", "organicControl": "Biological control.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/plants/106053/apium-graveolens-var-rapaceum/details" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "RHS confirms HEAVY feeder. Between-row UNVERIFIED. Companions UNVERIFIED.", "flags": [ "spacing_derived_from_inrow", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/celery/grow-your-own" ] }, { "id": "celeriac", "name": "Celeriac", "botanicalName": "Apium graveolens var. rapaceum", "family": "Apiaceae", "rotationGroup": "roots", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": "heavy", "feederConfidence": "verified", "sun": "full-or-partial", "heightClass": "low", "habit": "root", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 10, "max": 50 }, "support": false, "supportNote": null, "perennial": false, "protectedCropOnly": false, "sowingMethod": "module", "spacing": { "inRowCm": { "min": 30, "max": 30 }, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": 11.1, "blockSpacingCm": 30, "confidence": "derived_inrow" }, "calendar": { "sow": [ 3 ], "plantOut": [ 5, 6 ], "harvest": [ 9, 10, 11, 12 ], "protect": [ 11, 12 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Celery leaf miner", "type": "pest", "organicControl": "Cover with fleece/mesh.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/plants/106053/apium-graveolens-var-rapaceum/details" }, { "name": "Slugs & snails", "type": "pest", "organicControl": "Biological control.", "watchMonths": [ 3, 4, 5 ], "source": "https://www.rhs.org.uk/plants/106053/apium-graveolens-var-rapaceum/details" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "~6-month crop needing constant moisture. Between-row UNVERIFIED.", "flags": [ "spacing_derived_from_inrow", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/celeriac/grow-your-own" ] }, { "id": "courgette", "name": "Courgette", "botanicalName": "Cucurbita pepo", "family": "Cucurbitaceae", "rotationGroup": "cucurbits", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "sprawling", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": "Can be coaxed up a robust frame to save space.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": { "min": 75, "max": 90 }, "betweenRowCm": { "min": 100, "max": 120 }, "plantsPerSqMSource": { "min": 0.9, "max": 0.9 }, "planningPlantsPerSqM": 1.0, "blockSpacingCm": 100, "confidence": "verified" }, "calendar": { "sow": [ 4, 5 ], "plantOut": [ 5 ], "harvest": [ 7, 8, 9 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Slugs", "type": "pest", "organicControl": "Protect direct-sown/young seedlings immediately.", "watchMonths": [ 5, 6 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/allotments/sow-tender-veg-outdoors" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Raised-bed spacing 75x100 cm; big footprint — place at bed edge. Companions UNVERIFIED.", "flags": [ "calendar_season_mapped", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/courgettes/grow-your-own" ] }, { "id": "winter-squash", "name": "Winter squash", "botanicalName": "Cucurbita spp.", "family": "Cucurbitaceae", "rotationGroup": "cucurbits", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "sprawling", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": "Sprawls as living mulch or climbs a robust frame.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": { "min": 1, "max": 1 }, "planningPlantsPerSqM": 1.0, "blockSpacingCm": 100, "confidence": "partial" }, "calendar": { "sow": [ 4, 5 ], "plantOut": [ 5 ], "harvest": [ 9, 10, 11 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "seasonMapped", "seasonMapped": true, "harvestDerived": false }, "pests": [ { "name": "Fungus gnats / sciarid fly", "type": "pest", "organicControl": "Nematode biocontrol at indoor seedling stage.", "watchMonths": [ 4, 5 ], "source": "https://www.rhs.org.uk/gardens/articles/pumpkins-at-rhs-gardens" } ], "companions": { "allies": [ { "partner": "sweetcorn", "tier": 1, "reason": "Three Sisters: ground-cover shades soil, retains moisture.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" }, { "partner": "runner-bean", "tier": 1, "reason": "Three Sisters guild member.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" } ], "avoid": [] }, "fieldNotes": "Only Three-Sisters density (1/m2) sourced; row spacing UNVERIFIED. Sprawling — needs edge/ground space.", "flags": [ "spacing_partial_source", "calendar_season_mapped", "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/vegetables/squash/grow-your-own" ] }, { "id": "pumpkin", "name": "Pumpkin", "botanicalName": "Cucurbita pepo/maxima", "family": "Cucurbitaceae", "rotationGroup": "cucurbits", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": "heavy", "feederConfidence": "verified", "sun": "full", "heightClass": "low", "habit": "sprawling", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": "Trails; can climb a robust frame.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": { "min": 75, "max": 90 }, "betweenRowCm": { "min": 120, "max": 150 }, "plantsPerSqMSource": { "min": 0.74, "max": 1 }, "planningPlantsPerSqM": 0.8, "blockSpacingCm": 112, "confidence": "verified" }, "calendar": { "sow": [ 4, 5, 6 ], "plantOut": [ 5, 6 ], "harvest": [ 9, 10 ], "protect": [ 10 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Powdery mildew", "type": "disease", "organicControl": "Deep consistent watering; avoid drought stress.", "watchMonths": [ 7, 8, 9 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-and-figures-pumpkins" }, { "name": "Slugs", "type": "pest", "organicControl": "Start indoors to bypass early grazing.", "watchMonths": [ 4, 5 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/features/fascinating-facts-and-figures-pumpkins" } ], "companions": { "allies": [ { "partner": "sweetcorn", "tier": 1, "reason": "Three Sisters: living mulch.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" }, { "partner": "runner-bean", "tier": 1, "reason": "Three Sisters guild member.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" } ], "avoid": [] }, "fieldNotes": "RHS confirms heavy feeder (grow on compost heap). Very large footprint.", "flags": [], "sources": [ "https://www.rhs.org.uk/vegetables/pumpkins/grow-your-own" ] }, { "id": "cucumber-ridge", "name": "Cucumber (outdoor / ridge)", "botanicalName": "Cucumis sativus", "family": "Cucurbitaceae", "rotationGroup": "cucurbits", "rotationRole": "heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "climber", "matureHeightCm": { "min": 10, "max": 50 }, "matureSpreadCm": { "min": 150, "max": 250 }, "support": true, "supportNote": "Grows best vertically up hazel poles/trellis (to ~250 cm). Place on north edge.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "unverified" }, "calendar": { "sow": [ 4 ], "plantOut": [ 6 ], "harvest": [ 7, 8, 9 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Glasshouse whitefly", "type": "pest", "organicControl": "Trap crops or tolerate; worse under cover.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/plants/105568/cucumis-sativus/details" }, { "name": "Powdery mildew / cucumber mosaic virus", "type": "disease", "organicControl": "Keep moisture consistent; remove infected plants.", "watchMonths": [ 7, 8 ], "source": "https://www.rhs.org.uk/plants/105568/cucumis-sativus/details" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "SPACING UNVERIFIED. Vertical climber — needs spacing before auto-placement. Companions UNVERIFIED.", "flags": [ "spacing_unverified_needs_input", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/cucumbers/grow-your-own" ] }, { "id": "sweetcorn", "name": "Sweetcorn", "botanicalName": "Zea mays", "family": "Poaceae", "rotationGroup": "flexible", "rotationRole": "tall_block", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "upright", "matureHeightCm": { "min": 150, "max": 250 }, "matureSpreadCm": { "min": 50, "max": 100 }, "support": false, "supportNote": "Staking only in very exposed sites.", "perennial": false, "protectedCropOnly": false, "sowingMethod": "indoors", "spacing": { "inRowCm": { "min": 40, "max": 45 }, "betweenRowCm": { "min": 45, "max": 45 }, "plantsPerSqMSource": { "min": 4.9, "max": 4.9 }, "planningPlantsPerSqM": 4.9, "blockSpacingCm": 45, "confidence": "verified" }, "calendar": { "sow": [ 4, 5, 6 ], "plantOut": [ 5, 6 ], "harvest": [ 8, 9, 10 ], "protect": [ 5 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Smut", "type": "disease", "organicControl": "Cut out and destroy grey galls in hot weather.", "watchMonths": [ 7, 8 ], "source": "https://www.rhs.org.uk/plants/117623/zea-mays-ovation/details" }, { "name": "Badgers / mice / birds", "type": "pest", "organicControl": "Physical cage over ripening cobs.", "watchMonths": [ 8, 9, 10 ], "source": "https://www.rhs.org.uk/plants/117623/zea-mays-ovation/details" } ], "companions": { "allies": [ { "partner": "runner-bean", "tier": 1, "reason": "Three Sisters: corn is the climbing frame for beans.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" }, { "partner": "pumpkin", "tier": 1, "reason": "Three Sisters: squash shades soil at corn's base.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/three-sisters" } ], "avoid": [] }, "fieldNotes": "MUST be planted in a square block (not a single row) for wind pollination. Tall — place on north edge.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/advice/grow-your-own/allotments/sow-tender-veg-outdoors", "https://www.rhs.org.uk/plants/117623/zea-mays-ovation/details" ] }, { "id": "pepper-chilli", "name": "Pepper / chilli", "botanicalName": "Capsicum", "family": "Solanaceae", "rotationGroup": "solanaceae", "rotationRole": "fruiting_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "bush", "matureHeightCm": { "min": 20, "max": 60 }, "matureSpreadCm": { "min": 30, "max": 30 }, "support": true, "supportNote": "Short canes for taller varieties.", "perennial": false, "protectedCropOnly": true, "sowingMethod": "indoors", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "unverified" }, "calendar": { "sow": [ 2, 3, 4 ], "plantOut": [ 5 ], "harvest": [ 7, 8, 9 ], "protect": [ 3, 4, 5 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Glasshouse red spider mite", "type": "pest", "organicControl": "Damp down floors to raise humidity.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/chilli-pepper/grow-your-own" }, { "name": "Aphids / whitefly", "type": "pest", "organicControl": "Trap crops or biological controls.", "watchMonths": [ 4, 5, 6, 7 ], "source": "https://www.rhs.org.uk/vegetables/chilli-pepper/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "PROTECTED CROP (greenhouse/polytunnel in UK). Only 22 cm pot diameter sourced — open-bed spacing UNVERIFIED.", "flags": [ "spacing_unverified_needs_input", "feeder_unverified_in_source", "companions_unverified", "protected_crop_greenhouse_only" ], "sources": [ "https://www.rhs.org.uk/vegetables/peppers/grow-your-own", "https://www.rhs.org.uk/vegetables/chilli-pepper/grow-your-own" ] }, { "id": "aubergine", "name": "Aubergine", "botanicalName": "Solanum melongena", "family": "Solanaceae", "rotationGroup": "solanaceae", "rotationRole": "fruiting_heavy_feeder", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "medium", "habit": "bush", "matureHeightCm": null, "matureSpreadCm": null, "support": true, "supportNote": "Sturdy bamboo cane for heavy fruit.", "perennial": false, "protectedCropOnly": true, "sowingMethod": "indoors", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "unverified" }, "calendar": { "sow": [ 2, 3 ], "plantOut": [ 5 ], "harvest": [ 8, 9, 10 ], "protect": [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Glasshouse whitefly", "type": "pest", "organicControl": "Biological predators or trap crops.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/aubergines/grow-your-own" }, { "name": "Glasshouse red spider mite", "type": "pest", "organicControl": "Increase humidity by damping down.", "watchMonths": [ 6, 7, 8 ], "source": "https://www.rhs.org.uk/vegetables/aubergines/grow-your-own" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "PROTECTED CROP (needs greenhouse/polytunnel all season). SPACING UNVERIFIED. Companions UNVERIFIED.", "flags": [ "spacing_unverified_needs_input", "feeder_unverified_in_source", "companions_unverified", "protected_crop_greenhouse_only" ], "sources": [ "https://www.rhs.org.uk/vegetables/aubergines/grow-your-own" ] }, { "id": "strawberry", "name": "Strawberry", "botanicalName": "Fragaria x ananassa", "family": "Rosaceae", "rotationGroup": "perennial", "rotationRole": "perennial", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "low", "habit": "low", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": true, "protectedCropOnly": false, "sowingMethod": "runners", "spacing": { "inRowCm": { "min": 30, "max": 30 }, "betweenRowCm": { "min": 75, "max": 75 }, "plantsPerSqMSource": { "min": 4.4, "max": 4.4 }, "planningPlantsPerSqM": 4.4, "blockSpacingCm": 48, "confidence": "verified" }, "calendar": { "sow": [ 8, 9 ], "plantOut": [ 3, 4, 5 ], "harvest": [ 6, 7 ], "protect": [ 3, 4 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Grey mould", "type": "disease", "organicControl": "Straw mulch under fruit; water at the base only.", "watchMonths": [ 6, 7 ], "source": "https://www.rhs.org.uk/fruit/strawberries/grow-your-own" }, { "name": "Red spider mite / aphids", "type": "pest", "organicControl": "Biological controls.", "watchMonths": [ 5, 6, 7 ], "source": "https://www.rhs.org.uk/fruit/strawberries/grow-your-own" } ], "companions": { "allies": [ { "partner": "garlic", "tier": 2, "reason": "Chopped garlic leaves theorised to repel aphids; weak evidence.", "inCropSet": true, "source": "https://www.rhs.org.uk/advice/grow-your-own/features/companion-planting" } ], "avoid": [] }, "fieldNotes": "Perennial — pin as a fixed bed feature, out of rotation.", "flags": [ "feeder_unverified_in_source" ], "sources": [ "https://www.rhs.org.uk/fruit/strawberries/grow-your-own" ] }, { "id": "rhubarb", "name": "Rhubarb", "botanicalName": "Rheum rhabarbarum", "family": "Polygonaceae", "rotationGroup": "perennial", "rotationRole": "perennial", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full-or-partial", "heightClass": "medium", "habit": "large-leaf", "matureHeightCm": null, "matureSpreadCm": null, "support": false, "supportNote": null, "perennial": true, "protectedCropOnly": false, "sowingMethod": "crowns", "spacing": { "inRowCm": { "min": 100, "max": 100 }, "betweenRowCm": { "min": 120, "max": 120 }, "plantsPerSqMSource": { "min": 0.83, "max": 0.83 }, "planningPlantsPerSqM": 0.83, "blockSpacingCm": 110, "confidence": "verified" }, "calendar": { "sow": [ 10, 11, 3, 4 ], "plantOut": [ 10, 11, 3, 4 ], "harvest": [ 4, 5, 6, 7 ], "protect": [ 1, 2 ], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Perennial, very large footprint (1 m). Pests & companions UNVERIFIED. Optional forcing in late winter.", "flags": [ "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/fruit/rhubarb/grow-your-own" ] }, { "id": "asparagus", "name": "Asparagus", "botanicalName": "Asparagus officinalis", "family": "Asparagaceae", "rotationGroup": "perennial", "rotationRole": "perennial", "nitrogenFixer": false, "feeder": null, "feederConfidence": "unverified", "sun": "full", "heightClass": "tall", "habit": "fern", "matureHeightCm": null, "matureSpreadCm": null, "support": true, "supportNote": "Support summer ferns with twine/stakes against wind.", "perennial": true, "protectedCropOnly": false, "sowingMethod": "crowns", "spacing": { "inRowCm": null, "betweenRowCm": null, "plantsPerSqMSource": null, "planningPlantsPerSqM": null, "blockSpacingCm": null, "confidence": "unverified" }, "calendar": { "sow": [], "plantOut": [ 3, 4 ], "harvest": [ 4, 5 ], "protect": [], "daysToMaturity": null, "confidence": "explicit", "seasonMapped": false, "harvestDerived": false }, "pests": [ { "name": "Asparagus beetle", "type": "pest", "organicControl": "Hand-pick adults/larvae daily through May.", "watchMonths": [ 5, 6 ], "source": "https://www.rhs.org.uk/advice/grow-your-own/in-month/may-jobs" } ], "companions": { "allies": [], "avoid": [] }, "fieldNotes": "Perennial, out of rotation. SPACING UNVERIFIED. Dedicated permanent bed; ~2-3 yrs to first crop.", "flags": [ "spacing_unverified_needs_input", "feeder_unverified_in_source", "companions_unverified" ], "sources": [ "https://www.rhs.org.uk/vegetables/asparagus/grow-your-own" ] } ] }