Aubergines in Glaschoil

Solanum melongena

Aubergine
Aubergine · Solanum melongena

Tender crop for a greenhouse, polytunnel, or very warm sheltered patio in the UK. It needs steady warmth, rich soil, and a long growing season to crop well.

100 cm · Full Sun · High Water

Calibrated to Glaschoil · last frost ≈ 10 Jun

Sow indoors February to April, plant out July, harvest August to September. Frost risk August to June.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow indoorsNoYesYesYesNoNoNoNoNoNoNoNo
Plant outNoNoNoNoNoNoYesNoNoNoNoNo
HarvestNoNoNoNoNoNoNoYesYesNoNoNo

Growing guide

Step-by-step instructions for growing Aubergine

  1. 01

    Sow Seeds Indoors

    9 Feb to 11 Apr

    Sow seeds in a heated propagator from 9th February to 11th April. Keep them at and sow to a depth of in fine seed compost.

  2. 02

    Prick Out Seedlings

    25 Mar to 8 Apr

    When the seedlings have their first true leaves, move them into small pots around 25th March - 8th April. Handle them by the leaves, not the stems, and keep them warm and bright so they don't draw.

  3. 03

    Pot On Plants

    15 Apr to 6 May

    Pot on as roots fill the first container, usually around 15th April - 6th May. Move each plant into a larger pot with fresh compost and keep watering lightly but regularly.

  4. 04

    Harden Off Plants

    17 Jun to 1 Jul

    Gradually acclimatise plants over 15 days from 17th June to 1st July. Put them out in the day and bring them back under cover at night until they are used to cooler conditions.

  5. 05

    Transplant to Final Position

    1 Jul to 8 Jul

    Plant out from 1st July to 8th July once frost has passed and the soil is warm. Water in thoroughly straight after planting, then use fleece or a cloche if nights are still cool.

  6. 06

    Support and Train

    18 Jul to 18 Jul

    From 18th July, tie main stems to a cane and remove side shoots below the first flower truss if growth is crowded. Pinch out the main growing tip after 4-6 trusses have set, so the plant puts energy into ripening fruit.

  7. 07

    Feed Plants

    18 Jul to 21 Aug every 2 weeks

    Start feeding from 18th July and continue to 21st August. Use a high-potash tomato feed every 14 days once the first flowers appear, and keep the compost evenly moist so fruit sets properly.

  8. 08

    Harvest Fruits

    21 Aug to 12 Sept

    Pick fruit from 21st August to 12th September while the skins are glossy and before the seeds harden. Cut them with a small stalk attached, and keep picking regularly to encourage more fruit.

Companion plants

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

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.

Suggested varieties

Popular varieties of Aubergine to consider

Black Beauty

A dependable dark-fruited variety for UK growers, especially under cover.

Jewel Marble

Compact plants with round, striped fruit, suited to pots and smaller greenhouses.

Bonica

Early to crop and a useful choice where the season is short.

Aubergine guides by town

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