The Q&A Archives: Prune Big Leaf Hydrangea

Question: I would like to reduce the size of my Big Leaf Hydrangea. I will take out some of the old stalks to the groung. Can I prune the newer stalks by let's say 25% and still bloom next summer.
When and what is the best way to do this.

Answer: Big Leaf Hydrangea (Hydrangea macrophylla) produces flowers on new shoots which develop on old wood. You can cut the entire shrub down to 18-24 inches after the first frost in your area. Remove some of the oldest stalks and cut the rest down to about knee level. Next spring new shoots will develop from the old wood and these new shoots will produce flowers.


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