How to prune oakleaf hydrangea

Immediately after flowering, mid to late summer. Deadhead spent blooms by cutting back to a pair of healthy leaves or buds. Remove dead or damaged canes at the base. Avoid cutting into old wood unnecessarily — only shape lightly to maintain natural form.

Annually (light pruning only). Oakleaf hydrangea blooms on old wood set the previous season, so timing is critical. Prune only immediately after flowering ends in summer. Minimal pruning is best — remove dead wood, spent flower heads, and any crossing or damaged stems. Hard cutting risks removing next year's buds and eliminating the autumn foliage display.

Deadhead spent blooms by cutting back to a pair of healthy leaves or buds. Remove dead or damaged canes at the base. Avoid cutting into old wood unnecessarily — only shape lightly to maintain natural form.