Pruning Cornelian Cherry
When and how — Cornus mas
Prune your cornelian Cherry in April and May — the optimal month is usually May.
You're in the pruning season right now — grab the secateurs.

When to prune?
The shrub cornelian Cherry is pruned in April and May.
Pruning time depends on when the shrub flowers.
The rule of thumb for ornamental shrubs: spring-flowering shrubs (forsythia, lilac, flowering currant) are pruned immediately after flowering, because they set their buds on last year's wood. Summer-flowering shrubs (buddleia, paniculata hydrangea, hardy hibiscus) are pruned in March, because they flower on wood produced this season. Get the timing wrong and you cut off this year's buds. Evergreen shrubs (yew, box) are best pruned around Midsummer (24 June): the first flush of growth is finished and the plant still has time to seal the wounds before winter.
How to prune cornelian Cherry
Cornelian cherry requires very little pruning and flowers on wood produced the previous year, so heavy cutting will sacrifice the early-spring blossom that appears on bare stems in February and March. The best time to prune is immediately after flowering finishes, in April or May, once you've enjoyed the yellow blooms and before the shrub puts energy into new growth. Use clean, sharp secateurs for stems up to pencil thickness and loppers or a pruning saw for anything thicker. Start by removing any dead, damaged, or diseased wood back to healthy tissue or the base. Then take out crossing branches that rub together, as these create wounds vulnerable to infection. Cornelian cherry naturally forms a rounded, multi-stemmed shrub, so aim to maintain an open centre that allows light and air to reach the interior. If your shrub has become congested or overgrown, thin out up to one-third of the oldest stems at ground level each year over a three-year cycle. This encourages vigorous young growth without shocking the plant. Avoid shearing or formal shaping; it destroys the graceful habit and reduces flowering. If you're growing cornelian cherry as an informal hedge, a light trim in May to tidy wayward shoots is sufficient. Mature specimens tolerate harder renovation pruning if absolutely necessary, but recovery is slow. If the shrub has outgrown its space, it's better to transplant it or choose a different plant. For most gardeners, an annual tidy-up of dead wood and the occasional removal of an old stem is all that's needed to keep a cornelian cherry healthy and attractive.
Common mistakes
✗ Hard-pruning all hydrangeas in early spring
Mophead hydrangea (Hydrangea macrophylla) flowers on old wood — cut it back in March and you get no flowers. Paniculata flowers on new wood and can be cut back hard. Check the species first.
✗ Trimming everything to the same length
Looks 'chopped' and weakens the shrub. Instead, remove one in three of the oldest stems each year right down to the base (renewal pruning). This keeps the shrub vigorous and natural in shape.
✗ Pruning in summer heat
Fresh cuts dry out quickly in full sun and become an entry point for fungal disease. Wait for an overcast day or postpone until autumn.
Combine with feeding
In April you can combine pruning with feeding — efficient, and you only disturb the plant once. Read the full care guide for cornelian Cherry →