Bigleaf Hydrangea: Prune Carefully
Autumn pruning of bigleaf hydrangea (H. macropheylla) is advisable if done with care. This species blooms on the tips of last year’s growth. Cut out old canes with faded flowers and leave all new growth shoots undisturbed. If the weather is severe in late winter when plants are preparing for spring growth, protect the clumps or delicate terminal flower buds could be lost. The bigleaf hydrangea produces white, pink or blue flowers.