When to plant Spring Onions in Stirling

Allium cepa

Spring Onion
Spring Onion · Allium cepa

Spring onions are a fast salad onion for the UK garden. Sow little and often through spring and summer, or sow a winter-hardy variety to pick next spring. They take little space and grow well in pots.

30 cm · Full Sun · Moderate Water

Add to garden

Calibrated to Stirling · average last frost around 1 May

Sow outdoors August to September, harvest February to May. Typical frost risk October to May.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoNoNoNoNoNoYesYesNoNoNo
HarvestNoYesYesYesYesNoNoNoNoNoNoNo

Growing guide

What to do through the growing season

Growing guide for

Change the guide to see different planting timelines and tips.

Sow a winter-hardy variety in autumn and overwinter it for an early spring harvest.

  1. 01

    Sow Seeds in Autumn

    23 Aug to 12 Sept

    Sow a winter-hardy variety, such as White Lisbon Winter Hardy, from 23rd August - 12th September. Sow deep in an open, sunny spot. If the weather is dry, keep the seedbed moist so they germinate before winter.

  2. 02

    Winter Care

    17 Oct to 24 Feb 2028

    Keep the bed weed-free through 17th October - 24th February 2028. Cover with fleece or a cloche in hard frost. The soil must drain well, or plants rot.

  3. 03

    Thin in Spring

    1 Apr to 1 May 2028

    When growth resumes, around 1st April - 1st May 2028, thin to apart if the row is crowded.

  4. 04

    Harvest

    24 Feb to 10 May 2028 Dates as each sowing reaches this stage

    Pull overwintered spring onions from 24th February 2028 once they are pencil-thick. Keep picking through 10th May 2028. They are ready earlier than spring-sown rows. Use them fresh.

Companion plants

Tap a plant to see why it works (or doesn't) with Spring Onion.

Good companions

Plants to avoid

Why companion planting matters

Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.

Spring Onion guides by town

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