Since my prior post about pruning a pee gee hydrangea, I have received numerous follow-up questions on why and how to prune other types of hydrangea. Most of the hydrangea in the garden are either mopheads or lace caps (pictured). These belong to the group Hydrangea macrophylla. Most macrophylla bloom on wood or stems more than a year old.
Autumn amble at New York Botanical Garden
27 minutes ago