Pruning guide

Pruning Basil

When and howOcimum basilicum

Prune your basil in June, July and August — the optimal month is usually July.

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The next pruning window is June.

Basil (Ocimum basilicum)
Foto: Photo by David J. Stang / Wikimedia Commons / CC BY-SA 4.0

When to prune?

The herb basil is pruned in June, July and August.

You prune herbs by harvesting them regularly.

With herbs, pruning is the same as harvesting. The more often you pick the tips, the fuller the plant — especially with basil, mint and oregano, weekly tip-pinching produces a far denser bush. Woody herbs (rosemary, sage, thyme, lavender) also get one proper annual prune: cut back by a third to half immediately after flowering, but NEVER into old, bare wood — they won't re-shoot from there. Annual herbs (basil, coriander, dill) need no winter prune; you harvest until the first frost. Hardy perennial herbs (parsley, chives, oregano) get a light cut-back in November and a full clearance in February before new growth.

How to prune basil

Basil doesn't require pruning in the traditional sense, but regular pinching out and harvesting from June through August is essential to keep plants bushy, productive, and prevent them from flowering prematurely. Once basil flowers, leaf production slows and flavour deteriorates, so your goal is to delay flowering for as long as possible. Start pinching out the growing tips when plants reach about 15 cm tall, usually in early to mid-June. Use your fingers or sharp scissors to remove the top pair of leaves and the growing tip just above a set of lower leaves. This encourages the plant to branch out from the leaf nodes below, creating a bushier shape with more harvestable stems. Repeat this process every week or two throughout June, July, and August, always cutting just above a pair of leaves. As summer progresses, flower buds will appear at the tips of stems—small clusters of green buds that will open into white flowers. Remove these immediately by pinching them out, cutting back to the next set of leaves below. If you miss a few and flowers do open, cut the entire flowering stem back by half to stimulate fresh leafy growth. When harvesting leaves for the kitchen, always cut whole stems rather than picking individual leaves. Cut stems back to just above a lower set of leaves, leaving at least two pairs on the plant. This method keeps plants compact and encourages multiple new shoots. Never remove more than one-third of the plant at once. By late August, as temperatures drop, basil growth slows naturally and regular pinching becomes less critical.

Common mistakes

Cutting lavender into old wood

Lavender doesn't re-shoot from old, bare wood. Cut back 5–10 cm into young green growth every year — neglect it for a few seasons and you'll have to replace the plant.

Picking basil leaf by leaf

Don't pull leaves off the stem — cut the entire top with 2–3 leaf pairs. The plant then sends out two new shoots and bushes up.

Letting culinary herbs flower 'for the bees'

A noble goal, but flowering changes the leaf flavour (often bitterer). Compromise: let part of the plant flower and cut the rest back in time.

Combine with feeding

In June and July you can combine pruning with feeding — efficient, and you only disturb the plant once. Read the full care guide for basil →

Hold off on pruning

Better to wait than prune at the wrong moment. The next optimal window is June. Until then: leave the plant alone — only remove dead or diseased wood (which you can do year-round).

Also prune in June, July and August

More about basil