I have overgrown (Vanilla and Strawberry) Hydrangeas. When can I prune them?
Here are some guidelines for you:
Prune only as needed; know what you want to achieve
Pruning stimulates growth so be careful WHEN you prune.
Pruning is a good way to remove dead, diseased or weak branches.
PRUNING OLD WOOD
Old Wood hydrangeas are the mopheads or lacecaps (Macrophyllas and Serratas) and the Oakleaf (Quercifolia)
Spring blooming shrubs develop buds in fall
- Tend to bloom early in season
PRUNING NEW WOOD
New Wood hydrangeas are the Limelight (Panciculatas) or Annabelle (Arborescens).
Summer/Fall blooming shrubs form buds as they grow
- Tend to bloom later in season
WHEN DOES THE SHRUB FORM FLOWERS?
If it blooms BEFORE May 1 … Prune AFTER flowers – blooms on “old” wood (no later than 4th July)
If it blooms AFTER May 1 … Prune BEFORE new growth begins in the spring – blooms on “new” wood