These hydrangeas, commonly called bigleaf or French hydrangeas, were planted by the previous owner, so I’m uncertain of their age. Sources say they should be planted where they don’t need to be pruned, except to trim away spent flowers. I felt they had grown out of proportion to other nearby plants, however, so I decided to take matters in hand and chop away.
Experts recommend pruning Hydrangea macrophylla as flowers begin to fade by removing 1/3 of the oldest branches and then pruning the remaining by a third of their length. After following these instructions, I decided to push the envelope a bit, and ended up with branches roughly half their original length, or perhaps a tad less.
Time will tell if this is a fix or a blunder. What do you think?