The H.

Mar 25, Hydrangea paniculata, panicle hydrangea.

Prune back stems to just above a fat bud - called a heading cut - in fall, late winter or spring. These plants have conical-shaped flower heads. I recommend leaving the dry, tan flower heads on the plant to provide some winter interest in your landscape, so I wait to prune these until late winter or spring.

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, Mophead and lacecap hydrangeas can be pruned in late winter or early spring The climbing hydrangea should be pruned in summer after flowering Prune smooth hydrangeas and paniculata species annually to a framework of branches to make them flower more prolifically Serrata can be treated the same as mophead and lacecapEstimated Reading Time: 5 mins.

Aug 15, Do not trim after August 1, and avoid pruning in the spring, winter, or fall, since you could be cutting off developing buds. Instead, just lightly tip and prune the branches as the leaves are emerging in the spring. This will encourage many new (but smaller) flowerheads rather than fewer large ones. Plants That Bloom on New Wood.