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When to Cut Hedges, and When to Leave Them Alone

When to Cut Hedges, and When to Leave Them Alone

Timing matters more than technique with most garden hedges, and there is a legal side to it as well.

Published 2 July 2026 by A&T Exterior

Nesting season comes first

Between March and August birds are likely to be nesting, and it is an offence under the Wildlife and Countryside Act to damage an active nest. We check before we cut, and if there is a nest in there the hedge waits. No job is worth getting that wrong.

Formal hedges

Privet, box and beech are usually cut in late summer once the main growth has hardened off, with a lighter tidy in spring if they are growing strongly. That gives a crisp shape that holds through the winter.

Conifers and leylandii

Cut them little and often into green growth. Leylandii will not regrow from old brown wood, so once you cut past the green that face stays bare. If a conifer has already outgrown the space, reducing the height and accepting a flatter top is usually the sensible option.

Getting a straight top

Run a line. It sounds fussy but a string line down a long hedge is the difference between a hedge that looks cut and a hedge that looks landscaped.

Clearing up

Sheet the ground before you start. Picking clippings out of gravel or a border afterwards takes longer than the cutting did. If you would rather not spend the weekend on it, hedge trimming is one of the jobs we do most.

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