Japanese snowbell (Styrax japonicus)

Photo: Dalgial, CC BY-SA 3.0 · source

Pruning guide · Tree

Japanese snowbell: when and how to prune

Styrax japonicus

Japanese snowbell is best pruned in July.

Key facts
Pruning monthsJuly
Nesting season (15 March–15 August)Take care in July
FloweringMay–June
Good for bees, butterflies and birdsYes, for bees
Native to BelgiumNo, planted

Japanese snowbell: when to prune it?

It needs little pruning. Do any necessary work after flowering, in July.

What else to prune in those months? July

Japanese snowbell: how to prune it?

  1. Remove dead, diseased and crossing branches.
  2. On a young tree, gradually remove a few low branches if you want a clear trunk, but keep the natural layered shape.
  3. Cut out water shoots and suckers at the base.
  4. Never prune hard: the graceful shape is slow to recover.

How much to cut, and how often?

  • One pruning period a year: July.
  • Never remove more than about a quarter of the crown at once. Better a little every year.

What does it mean for wildlife?

  • Pruning in July can fall in the nesting season (15 March–15 August). Check carefully for nesting birds first: disturbing an active nest is against the law.
  • Japanese snowbell 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.

Caution: Prune as little as possible and not in winter or spring: every branch you remove then costs flowers.

Nearby: related pruning guides

Plant profile: Japanese snowbell · Pruning calendar and basic rules

This guide is compiled from the Bladwijzer plant profile and pruning calendar.

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