Prune in early spring, just as leaves are beginning to show. Cut branches back by one-half to one-third, cutting just above a node. Next, remove any weak or spindly branches. For H. Hard pruning 12 to 18 inches from the ground or even all the way to the ground, will produce fewer, but larger, flower heads that may flop without propping.
Flower head size can be related to pruning. With more aggressive pruning, shoots will be more vigorous and flower heads will be larger and fewer. Less aggressive or tip pruning can result in smaller but more numerous flower heads. The best advice for hydrangeas is to consider their mature size.
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Home Plants How to prune a hydrangea in spring. How to prune hydrangeas in spring — removing an old hydrangea flowerhead above a growing new bud. How to prune hydrangeas in spring — pruning old hydrangea stems. Pruning climbing hydrangeas Climbing hydrangeas such as Hydrangea anomola subsp.
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