vegetable
solanaceae family

Aubergine

Solanum melongena

Aubergines can be grown successfully in the UK, though they need warmth and a long season. These glossy, purple-skinned fruits are a staple of Mediterranean and Asian cooking, and home-grown specimens have a far superior flavour and texture to shop-bought. Sow seeds in late February or March on a heated propagator at 25°C — they need high temperatures to germinate. Grow on in a greenhouse or polytunnel for the best results, though modern compact varieties can crop on a sunny, sheltered patio. Pot into 25cm containers or grow bags, two per bag. Pinch out the growing tip when the plant reaches 30cm to encourage branching. Allow 5–6 fruits per plant — remove additional flowers to concentrate the plant's energy. Feed weekly with high-potash tomato fertiliser once the first fruits set. Harvest from August when the fruits are glossy and firm — dull, matt skin indicates the fruit is over-mature and will be seedy and bitter. 'Moneymaker' and 'Black Beauty' are traditional varieties; 'Slim Jim' and 'Pinstripe' produce smaller, more prolific fruits ideal for containers. In a good summer, outdoor aubergines in southern England can be very productive.

Plan where to grow Aubergine using our vegetable garden planner.

SunlightFull sun
WateringHigh
Height75cm
Spacing45cm
Germination10–21 days at 25°C
Sowing MethodUnder cover
Frost HardinessTender
Sowing Depth5mm

When to Sow Aubergine

Sow aubergine in February, March.

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Sowing months

Time to Harvest Aubergine

Expect to harvest approximately 5 months after sowing.

Companion Plants

Expected Yield

5–6 fruits per plant in a greenhouse; fewer outdoors. Each fruit weighs 200–400g.

Growing Tips

Best in greenhouse; limit to 5–6 fruits per plant

Common Problems with Aubergine

Red spider mite

Tiny mites cause fine speckling on leaves, which turn bronze and dry; fine webbing visible in severe infestations. Thrives in hot, dry greenhouse conditions. Mist plants regularly to raise humidity, and introduce the biological control Phytoseiulus persimilis early in the season. Remove and destroy badly affected leaves.

Whitefly

Clouds of tiny white flies rise when the plant is disturbed, weakening the plant and depositing sticky honeydew. Use yellow sticky traps for monitoring and mass trapping. Introduce the parasitic wasp Encarsia formosa in the greenhouse from April. Spray with organic neem oil for heavy infestations.

Poor fruit set in cool summers

Aubergines need consistently warm conditions (20°C+) to set fruit. In cool UK summers, flowers may drop without producing fruit. Grow in a greenhouse or polytunnel for reliable results. Tap flower trusses gently to aid pollination. Misting flowers can also help. Choose early-maturing, compact varieties for outdoor growing.

Plan your aubergine in the allotment planner

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Solanum lycopersicum var. cerasiforme

vegetable

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Butterhead Lettuce

Lactuca sativa

vegetable

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Part shadeHigh20cm