Pruning Aubergine
When and how — Solanum melongena
Prune your aubergine in July — the optimal month is usually July.
The next pruning window is July.
When to prune?
The vegetable aubergine is pruned in July.
With vegetables, 'pruning' is usually about directing energy and keeping production going.
Many vegetables don't need pruning in the classical sense, but several interventions directly affect the harvest. Tomatoes get sideshooted weekly: pinch out the shoots that form in the leaf axils so the plant puts energy into fruit, not extra foliage. Aubergine, sweet pepper and cucumber benefit from similar pinching. With brassicas and leafy crops (lettuce, chard, endive) you pick or cut outer leaves while the heart keeps growing — 'cut and come again'. Root crops (carrot, beetroot, parsnip) are left alone: keep the leaves intact until harvest, because they feed the root.
How to prune aubergine
Aubergines benefit from light pruning in July to channel energy into fruit production and improve air circulation. Unlike tomatoes, they do not require aggressive side-shooting, but some selective trimming will give you better-quality fruits and a more manageable plant, especially in our cooler climate where the growing season is short. In mid to late July, once the plant has set four to six fruits, pinch out the growing tip at the top of the main stem. This stops upward growth and encourages the plant to focus on swelling the existing fruits rather than producing more flowers that are unlikely to mature before autumn. At the same time, remove any additional flowers that appear after this point for the same reason. Throughout July and into August, check regularly for yellowing or damaged lower leaves and remove them cleanly with secateurs or a sharp knife. This improves airflow around the base of the plant and reduces the risk of fungal diseases in humid summer weather. Also trim away any small, weak side shoots that are not bearing fruit, particularly those low down or in the centre of the plant where they create congestion. Use clean, sharp secateurs for all cuts and avoid tearing the stems. If you are growing aubergines in a greenhouse, pruning becomes even more important to prevent overcrowding and maintain good ventilation. Always handle the plants gently—aubergine stems can be brittle. If a plant is struggling or growth is very slow, resist the temptation to prune heavily; sometimes less intervention is better in marginal conditions.
Common mistakes
✗ Not sideshooting tomatoes
An un-sideshooted tomato puts 70% of its energy into extra leaves instead of fruit. That's half a bucket less per plant — five minutes of sideshooting a week pays off enormously.
✗ Cutting lettuce off whole
Take only the outer leaves and leave the heart standing; the plant keeps growing for another 4–6 weeks and you harvest far more per plant.
Combine with feeding
In July you can combine pruning with feeding — efficient, and you only disturb the plant once. Read the full care guide for aubergine →
Hold off on pruning
Better to wait than prune at the wrong moment. The next optimal window is July. Until then: leave the plant alone — only remove dead or diseased wood (which you can do year-round).
