Yellow azalea: when and how to prune

Yellow azalea: when to prune it?

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Pruning is hardly needed. If you do prune, do it in June, straight after flowering.

What else to prune in those months? June

Yellow azalea: how to prune it?

1. Snap or cut off the faded flower clusters; take care of the young shoots and buds just below.
2. Remove dead, diseased or crossing branches.
3. Renew a shrub that is too large or bare by taking out one or two of the oldest stems low down each year.
4. Do not prune in winter or early spring: you would remove the flower buds.

How much to cut, and how often?

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

What does it mean for wildlife?

• Pruning in 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.
• Yellow azalea flowers in May, 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

• Rhododendron
• Dwarf rhododendron (Rhododendron impeditum)
• Flame azalea (Rhododendron calendulaceum)
• Royal azalea (Rhododendron schlippenbachii)
• Torch azalea (Rhododendron kaempferi)
• Western azalea (Rhododendron occidentale)

Plant profile: Yellow azalea · Pruning calendar and basic rules