Photo: Jean-Pol GRANDMONT, CC BY 3.0 · source
Pruning guide · Conifer
Black pine: when and how to prune
Pinus nigra
Black pine is best pruned in May–June.
| Pruning months | May–June |
|---|---|
| Nesting season (15 March–15 August) | Take care in May–June |
| Good for bees, butterflies and birds | Yes, for birds |
| Native to Belgium | No, naturalised |
Black pine: when to prune it?
Dead, diseased and broken branches can be removed at any time of year. Pinching the candles in May–June keeps a young tree compact.
Black pine: how to prune it?
- Pinch the new candles back by half in May–June: the pine then branches more densely and stays smaller.
- As with all pines: don’t cut back into bare wood, as no new buds will form there.
- Cut out diseased, brown shoots and disinfect your secateurs afterwards.
How much to cut, and how often?
- One pruning period a year: May–June.
- Grows best when left alone. Only remove dead, diseased or awkward branches.
- Most conifers do not regrow from old, bare wood. So never cut back into the brown part (exception: yew).
What does it mean for wildlife?
- Pruning in May–June can fall in the nesting season (15 March–15 August). Check carefully for nesting birds first: disturbing an active nest is against the law.
- 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.
- Cutting back into bare brown wood: it will not regrow from there.
- Pruning too much: it grows best when left alone.
- Leaving a stub or sawing flush with the trunk: cut just outside the branch collar.
Caution: Never cut out diseased shoots in wet weather: the fungal spores then spread easily.
Nearby: related pruning guides
Similar to: Difference from Scots pine
Plant profile: Black pine · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.