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🌍 Built for UK, USA, Canada & Worldwide Gardens Free Growing Guides for Every Region Love It or Your Money Back Secure Checkout Instant PDF Download Checked Against RHS, USDA & Agri-Food Canada Data Free Garden Layout Planner
How to Grow French Sorrels | Planting & Establishment
Move through the SoilCommander growing library like a course: keep the navigation in place, open the next lesson, and build your garden plan step by step.
French sorrels (Rumex scutatus) — Low-growing, mat-forming herbaceous perennial.
Unlike an annual crop, the work here is front-loaded into establishment: get the planting and the site right and the same plants crop for several seasons.
Core growing advice on this page is checked against named horticultural sources — see References.
RHS: sow seed indoors in spring or outdoors mid-spring to early summer, about 1cm deep, germinating in 1-2 weeks at 15C; plant out young stock 20-30cm apart. NC State: seed sown in the garden in early spring, about 1in deep; the plant self-seeds readily.
Establishment
3
RHS: water newly planted stock through dry spells until well-rooted; container plants need regular moisture checks; apply an annual mulch in late winter or early spring.
Leaf production
3
RHS and NC State both advise removing flower stems promptly to keep the plant channelling energy into fresh leaf growth rather than seed.
Harvest and division
8
RHS: harvest young leaves spring through autumn, picking regularly to keep growth tender; divide established clumps every four to five years to maintain productivity.
When to pick: RHS: gather young leaves from spring through autumn; regular harvesting promotes tender new growth. NC State: young leaves taste better than older ones.
Storage
Best used fresh; leaves owe their tart flavour to oxalic acid, so NC State flags moderating quantities eaten (concern noted specifically for pets/livestock).
RHS: occasional visitor to young foliage, rarely needing treatment. NC State reports no known pest problems.
Snails
low
Gastropoda (snails, various spp.)
RHS: occasional visitor to young foliage, rarely needing treatment.
Slugs
low
Gastropoda (slugs, various spp.)
RHS: occasional visitor to young foliage, rarely needing treatment. NC State reports no known pest problems -- a mild disagreement kept honest rather than merged.
The grey-green, shield-shaped leaves are the clearest way to tell French sorrel apart from the taller, arrow-leaved common sorrel already in this database.
NC State gives a native range stretching from Europe to Southwest Siberia and south to Iran -- a wide range of dry, well-drained habitats like this one.
Light: full sun or partial shade. Soil: average, medium, well-drained, tolerates clay/loam/sand across acid-alkaline pH. Size: 1.5-2ft height, 1.3-3ft spread, low-growing clump. Hardiness: USDA zones 4a-9b. Native range: Europe to Southwest Siberia, south to Iran. Propagation: seed, self-seeds readily. Pests/diseases: none documented. Edibility: leaves used in salads, soups and sauces, tart flavour from oxalic acid; remove flowers promptly to keep leaf production going. Toxicity: flagged as a concern for cats, dogs and horses; can cause contact dermatitis. Growing notes: drought and wind tolerant once established, does not tolerate maritime salt, low maintenance, medium growth rate.
Hardiness H6 (-20 to -15C, all of UK and northern Europe). Identification: grey-green, juicy, citrus-flavoured, shield-shaped leaves with pointed or rounded tips; low-growing, mat-forming, 15-45cm tall, spreading to ~1m. Soil: rich, fertile preferred, tolerates most well-drained soil; full sun or partial shade. Planting: young plants spring to early summer, 20-30cm apart, same depth as previously grown. Containers: at least 30cm wide/20cm deep, 50:50 soil-based and multi-purpose peat-free compost. Propagation: seed sown indoors in spring or outdoors mid-spring to early summer, ~1cm deep, germinates 1-2 weeks at 15C; divide every 4-5 years. Care: water newly planted stock in dry spells, annual mulch late winter/early spring, remove flower stems to keep leaf production going. Harvest: young leaves spring through autumn, regular picking encourages tender new growth. Pests: slugs, snails, aphids on young foliage, rarely needing treatment. Diseases: generally disease-free. Safety: potentially harmful if consumed in large quantities.
2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.
Plan next season before the problems start
This page gives you the thresholds; the planner turns them into your own calendar. It works from what you can observe and measure in your garden rather than from dates written for somebody else’s latitude.
Science-based growing guides · Thresholds that hold in any climate
This guide states the conditions the plant itself responds to — soil temperature, frost tolerance, day length — rather than dates, because the same calendar month means opposite seasons in the northern and southern hemispheres. Anything genuinely restricted to one part of the world is named as such rather than presented as universal. Written and maintained by our editorial team against international horticultural research and extension sources.
Sketch your exact plot shape, pick your crops, and get a spacing-accurate bed layout with companion pairings and a rotation plan. Spacing, companion pairings and rotation are the same in every climate and both hemispheres — pair the layout it gives you with when to plant to set your own timing from soil temperature.
