Yew: when and how to prune

Taxus baccata

Clip a yew hedge or topiary in May–June and/or late August–September; for an ordinary hedge, once a year is enough.

Yew is the only conifer that regrows from old, bare wood: you can cut it back hard, which other conifers won’t tolerate.

Updated on 10 October 2026

Key facts
Pruning months	May–June and August–September
Nesting season (15 March–15 August)	Take care in May–June and August
Good for bees, butterflies and birds	Yes, for birds
Native to Belgium	Yes
Poisonous to people and pets	Yes, take care with children and pets

Yew: when to prune it?

Crisp shapes are clipped twice: in May–June, after the first flush of growth, and in late August–September. An ordinary hedge is clipped once, ideally in late August or in September.

Renovate a neglected yew in March–April, just before new growth starts: it then regrows quickly in spring.

Don’t clip in frost or heat, or too late in autumn: young shoots still need to harden off before winter.

What else to prune in those months? May · June · August · September

Yew: how to prune it?

Wear gloves: the needles, bark and seeds are poisonous.
Before clipping, check for birds nesting in the hedge, especially in May–June.
Cut the new shoots back to a few centimetres above the previous cut. Stretch a line for a straight top and keep the top slightly narrower than the base.
Let a young hedge reach the height you want before cutting the top; trim the sides lightly from the start so it becomes dense.
Renovate an overgrown or bare yew over two years: in the first year one side and the top back to near the trunk, the following year the other side.
Clear up all the clippings and leave nothing lying where children, pets, horses or livestock can reach it.

How much to cut, and how often?

One trim a year for a hedge, two for crisp shapes. Yew grows slowly, so you only take off a few centimetres each time.
Cutting back hard into old wood is possible, but spread it over two years: that leaves enough green to feed the plant.
A freely growing yew needs no pruning; just remove dead or awkward branches.

What does it mean for wildlife?

A dense, evergreen yew hedge offers shelter all year round and is a favourite nesting place for blackbirds, robins and dunnocks. From 15 March to 15 August, check first for an active nest: disturbing it is against the law.
If you clip in May–June, look extra carefully, because that is when most nests are occupied. A hedge clipped only once is best done in late August or in September, after the nesting season.
Female plants bear red berries in autumn: thrushes and blackbirds eat the flesh and spread the seed. A loose, less tightly clipped yew bears more of them.
Yew is native to Belgium, although it rarely grows wild there; in a garden it is one of the few native evergreens.

Common mistakes

Not daring to prune, as with other conifers, so the yew grows too wide even though it regrows from old wood.
The reverse: pruning a thuja or cypress as hard as a yew, when they won’t regrow from bare wood.
Working without gloves, or leaving clippings where children, dogs, horses or livestock can get at them.
Cutting both sides back hard in the same year.

Caution: Wear gloves and don’t leave clippings lying around. Yew is poisonous: wear gloves and keep clippings away from children, pets and livestock.

Nearby: related pruning guides

Plant profile: Yew · Pruning calendar and basic rules