How to prune hydrangea paniculata. When hydrangeas blooms. Is your hydrangea not blooming? They do flower on new growth so hard pruning if necessary will not affect flowering but can lead to flower stalks that need support. Prune in fall. Timing will determine when to prune it. If you have a climbing Hydrangea cut back the … Wondering about overwintering hydrangeas? More on hydrangeas and pruning: Watch a video on pruning hydrangeas. You can safely remove spent blooms anytime. mop head Hydrangea. With this variety of hydrangeas you will see blooms on new wood. And the reasons are simple. If you are growing your hydrangeas in pots, pruning those hydrangeas is easy once you know the type of hydrangea you are growing. Prune as far back as you want right above the first leaf joints. Pruning hydrangea bushes is not necessary unless the shrubs have become overgrown or unsightly. If you’re confused about pruning Hydrangeas then put your mind at rest as we are about to explain in plain English how to prune your Hydrangeas. Wipe the pruners with rubbing alcohol or a solution of bleach and water to kill bacteria. These are particularly rewarding hydrangeas to grow because they will try to bloom on an annual basis regardless of how you treat them. Here is a list of the best times to prune each of the major types of hydrangeas. Here is a list of the best times to prune each of the major types of hydrangeas. Prune in late winter and early spring. The reason it can be confusing to know how and when to prune hydrangeas is that there are two ways in which to prune Hydrangeas depending on what types of Hydrangea YOU have.. Firstly if you have one of the large mop head Hydrangeas like the one pictured to the left which is very popular if not the most popular Hydrangea then you don’t need to prune them, if … How To Prune Hydrangeas. General Hydrangea Pruning Instructions & Deadheading Tips. How To Prune Hydrangeas. See more hydrangeas in our plant guide. Those who had the patience to leave their wind-battered hydrangeas alone for the slightly dubious reason that those tatty flowers … Pruning hydrangeas. The Complete Pruning Guide. Spring Blooming. The time has come. On established mopheads and lacecaps (Hydrangea macrophylla) remove one or two of the oldest stems close to the base of the plants to encourage … If there is die back after a hard winter then prune to the lowest emerging buds. There are three categories of hydrangea, hydrangea macrophylla, the hydrangeas paniculata and arborescens, and the hydrangea petiolaris. You can also cut off old or dead stems at the base of the plant to stimulate healthy new growth. First, it's important to know that mophead hydrangeas do not have to be pruned back - ever - unless they are very old. Leave strong looking growth with buds.