Most of the other hydrangeas should be pruned in summer, once they have finished blooming. Most of these bloom on what's called"old wood" - growth from the year before. If you prune them in early spring, you risk cuting off the dormant flower buds. By pruning right after the blooms have faded, you allow the plant time to set buds for the next year. Sep 24, The climbing hydrangea (Hydrangea anomala subsp.
petiolaris) should have overlong shoots cut back immediately after flowering. Most flowers appear towards the top of the plant, so leave as much of this un-pruned as stumpgrind.buzzted Reading Time: 5 mins. Aug 03, If you cut it all the way back, the next season’s growth won’t be as large. This is why many people decide to prune their hydrangeas to preserve the size of the plant. Old-growth should be cut back after flowering when the flowers begin to brown and wilt.
You can recognize this by flowers that come out from an old stumpgrind.buzzted Reading Time: 7 mins. Oct 31, When should I cut back my hydrangea bush?
This means the flowers have all died back and most, or all, of the leaves have dropped. In cooler climates, the best time for moving hydrangea bushes is November, when the bush is dormant but the ground is not yet frozen solid.