Wall cotoneaster (Cotoneaster horizontalis): when and how to prune

Wall cotoneaster (Cotoneaster horizontalis): when to prune it?

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It hardly needs pruning. If you must, do it in February–March, once the birds have eaten most of the berries and before the leaves emerge.

What else to prune in those months? February · March

Wall cotoneaster (Cotoneaster horizontalis): how to prune it?

1. Remove branches that grow forwards or in the wrong direction, so the herringbone pattern stays visible.
2. Shorten branches that are too long back to a side shoot, never halfway along a branch: that spoils the flat shape.
3. Remove dead and damaged branches.
4. Too wide? Cut the outer branches back to a side shoot that lies inside the edge you want.

How much to cut, and how often?

• One pruning period a year: February–March.
• Prune in moderation: never remove more than about a third of the shrub at once.

What does it mean for wildlife?

• Pruning in March can fall in the nesting season (15 March–15 August). Check carefully for nesting birds first: disturbing an active nest is against the law.
• Wall cotoneaster (Cotoneaster horizontalis) flowers in May–June, when it attracts bees.
• Prunings can go on a dead hedge or brash pile in a corner of the garden: shelter for hedgehogs, wrens and insects.

Common mistakes

• Clipping without first checking for nesting birds.
• Leaving a stub or sawing flush with the trunk: cut just outside the branch collar.

Nearby: related pruning guides

• Cotoneaster
• Bearberry cotoneaster (Cotoneaster dammeri)
• Franchet’s cotoneaster (Cotoneaster franchetii)
• Late cotoneaster (Cotoneaster lacteus)
• Willow-leaved cotoneaster (Cotoneaster salicifolius)
• Alder buckthorn

Plant profile: Wall cotoneaster (Cotoneaster horizontalis) · Pruning calendar and basic rules