When to plant Spinach in Cambridge

Spinacia oleracea

Spinach
Spinach · Spinacia oleracea

Spinach is a fast-growing leafy crop for cool UK weather. Sow in short runs through spring and late summer, keep the soil moist, and pick leaves regularly before plants run to seed in warm spells.

30 cm · Full Sun · High Water

Calibrated to Cambridge · last frost ≈ 7 May

Sow outdoors March to September, harvest April to October. Frost risk October to May.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoYesYesYesYesYesYesYesNoNoNo
HarvestNoNoNoYesYesYesYesYesYesYesNoNo

Growing guide

What to do through the growing season

  1. 01

    Sow Small Batches

    26 Mar to 4 Sept Optional · repeat every 2 weeks

    Sow a short row from 26th March - 4th September. Sow another small batch every 14 days. Sow thinly about deep, in rows about apart. Keep the soil lightly moist until it germinates. In warm weather give the row a little light shade.

    • Fleece or a cloche helps if the soil is still cold.
  2. 02

    Thin Seedlings

    9 Apr to 2 Oct Dates as each sowing reaches this stage

    After each sowing, once seedlings are large enough to handle, thin to apart. Use scissors if the roots are tangled. Water the row after thinning.

  3. 03

    Check for Slugs

    7 Apr to 19 Oct Dates as each sowing reaches this stage

    From 7th April, watch young plants for slugs, snails, and birds. Hand-pick slugs or use a barrier. They can strip a row in one night, especially in damp weather.

    • If the bed is overcrowded or stays humid, watch for downy mildew on the leaves. Thin so air can move through.
  4. 04

    Keep Well Watered

    9 Apr to 19 Oct Dates as each sowing reaches this stage

    From 9th April through 19th October, keep the soil evenly moist so the plants stay tender and do not bolt. Water at the base in dry spells. In warm weather a little light shade helps. Give pots extra water; they dry out fast.

  5. 05

    Harvest Leaves

    30 Apr to 19 Oct Dates as each sowing reaches this stage

    Start picking from 30th April and keep going until 19th October. Take outer leaves, or cut just above the crown for one larger crop.

    • A cloche can keep plants picking later.

Suggested varieties

Popular varieties of Spinach to consider

Toscane

A popular savoy-leaved spinach with dark, crinkled leaves and good flavour for repeated picking.

Apollo

A hardy, bolt-resistant variety suited to cool-weather sowing and useful for early and late crops.

Andromeda

A smooth-leaved spinach with a steady habit and useful field performance for home gardens.

Spinach guides by town

See how Spinach timing shifts in other towns with different frost dates.