Hydrangea macrophylla , Hydrangea aspera , Hydrangea serrata and Hydrangea quercifolia are lightly pruned by cutting back the old flower heads to a pair of buds below.
Since some hydrangea buds grow on old wood rather than new, it is especially crucial not to hack away too much of the flower – otherwise you risk producing a sparse bloom.
The best way to go about pruning hydrangeas is to use a pair of shears to cut away any dead wood, crossing branches or otherwise damaged branches.
Gardener’s World advises: “Different types of hydrangea are pruned in different ways, as some flower on old wood and some on new.
Exact time to prune hydrangeas so they bloom like crazy in spring Hydrangeas are one of the UK’s most popular flowers – and for good reason.