When to plant Leeks in Brighton

Allium ampeloprasum var. porrum

Leek
Leek · Allium ampeloprasum var. porrum

A hardy allium for the UK garden, best started under cover and planted out into firm, fertile soil. Keep the rows weed-free, water well in dry spells, and lift stems as you need them from autumn through winter and into spring.

45 cm · Full Sun · Moderate Water

Calibrated to Brighton · last frost ≈ 10 Apr

Sow indoors January to February, plant out March to May, harvest August to March. Frost risk November to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow indoorsYesYesNoNoNoNoNoNoNoNoNoNo
Plant outNoNoYesYesYesNoNoNoNoNoNoNo
HarvestYesYesYesNoNoNoNoYesYesYesYesYes

Growing guide

What to do through the growing season

  1. 01

    Prepare the Bed

    24 Feb to 11 Mar

    Around 24th February - 11th March, dig the bed well and work in compost. Leeks do best in moisture-retentive but free-draining soil, and a loose, stone-free tilth helps the stems grow straight.

  2. 02

    Sow Seeds Under Cover

    25 Jan to 24 Feb

    Sow seeds thinly in modules or a seed tray around 25th January - 24th February, about deep. Keep them at and water gently so the compost stays moist but not sodden.

  3. 03

    Prick Out Seedlings

    15 Feb to 31 Mar Dates as each sowing reaches this stage

    Move seedlings on when they are large enough to handle, from 15th February. Pot them into small modules or deeper trays so the roots can develop without crowding.

  4. 04

    Harden Off

    27 Mar to 10 Apr

    Set plants outside for a few hours a day before planting out. Do this over 27th March - 10th April so they adjust to wind, sun and cooler nights without checking growth.

  5. 05

    Plant Out

    27 Mar to 10 May

    Plant sturdy seedlings into deep dibbed holes around 27th March - 10th May, leaving just the base of the leaves at soil level. Water in thoroughly at once, then let the soil settle naturally around the roots rather than firming hard.

  6. 06

    Weed and Earth Up

    27 Mar to 11 Nov Dates as each sowing reaches this stage

    Keep the rows weed-free and draw soil up around the stems as they thicken. Start from 27th March and repeat as the plants grow, keeping moisture steady in dry spells so the stems stay tender and pale.

  7. 07

    Harvest Leeks

    31 Aug to 11 Mar 2028 Dates as each sowing reaches this stage

    Lift leeks from 31st August once the stems are a usable size, then keep picking through 11th March 2028. Loosen the soil with a fork before pulling and take only the stems needed.

Suggested varieties

Popular varieties of Leek to consider

Musselburgh

A reliable open-pollinated leek with long, sturdy stems and good winter hardiness.

Lyon

A traditional variety that gives long white shanks and dependable flavour.

Bandit

A hardy winter leek that stands well and crops for a long period.

Below Zero

A very cold-tolerant leek suited to late cropping and winter harvests.

Leek guides by town

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