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How to Grow
How to Grow Perpetual Spinach UK | Regional Planting Calendar
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RHS: sow March-August for year-round harvesting, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the source does not support.
Midlands - detail & sources
RHS: sow March-August for year-round harvesting, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the source does not support.
Northern England - detail & sources
RHS: sow March-August for year-round harvesting, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the source does not support.
Scotland - detail & sources
RHS: sow March-August for year-round harvesting, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the source does not support.
Sow March-August into soil enriched the previous autumn with compost or aged manure (RHS).
Leaf growth
3
Young foliage ready for salads within about 8 weeks; large, dark green ribbed leaves develop on thick edible stems (RHS).
Bolt-resistant cropping
4
Shows markedly better bolt resistance than true spinach, continuing to produce through summer heat that would finish ordinary spinach (RHS, grower consensus).
Cut-and-come-again harvest
8
Harvest outer leaves once sufficiently large; a single sowing supports year-round, repeated cut-and-come-again picking (RHS).
When to pick: Harvest outer leaves once sufficiently large; young foliage suitable for salads within about 8 weeks of sowing. Cut-and-come-again picking allows a year-round harvest from a single March-August sowing window (RHS).
Large, dark green ribbed foliage and thick, edible stems, resembling and tasting similar to spinach but with superior resistance to bolting, even during drought. Not native to GB/Ireland. Hardiness H4 (-10 to -5C). Full sun or partial shade. Soil: clay, loam; moist but well-drained; acid, neutral or alkaline pH; compost or aged manure incorporated in autumn. Height/spread 0.1-0.5m. Time to maturity 1-2 years. Propagate by seed. Pests: birds, cutworms, lettuce root maggots, root aphids, root knot eelworms, slugs, snails. Diseases: grey mould, lettuce downy mildew, mosaic virus, ring spot. Harvest outer leaves once sufficiently large; young foliage suitable for salads within about 8 weeks. Sow March-August for year-round harvesting via cut-and-come-again.
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.
Frequently Asked Questions
When should I sow perpetual spinach in the UK?
In Southern England, from early March. In Scotland, wait until early March. Treat these as a guide rather than a fixed date — the governing rule is to sow only once frost risk has passed and temperatures are reliably warm enough.
When do I sow perpetual spinach?
Sow early March to late August.
What soil pH do perpetual spinach need?
A pH of about 6–7.5. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.
What problems affect perpetual spinach?
Our data links 4 diseases and 5 pests to this crop. See the sections above for each one and how to manage it.
Plan next season before the problems start
Most of the advice on this page comes down to timing and spacing — sowing at the right moment, rotating beds, and giving plants enough airflow. The UK Garden Planner lays your plot out month by month so those decisions are already made before the season starts.
UK vegetable growing guides · Checked against RHS & Met Office guidance
Every SoilCommander guide is written and maintained by our editorial team for real UK growing conditions, and reviewed against Royal Horticultural Society growing advice and Met Office climate data before publication.
Sketch your exact plot shape, pick your UK crops, and get a spacing-accurate bed layout with companion pairings, a rotation plan and month-by-month sowing dates — every fact sourced from RHS and Garden Organic.
