Answer: Spring is the best time to prune hydrangeas. At that time you can cut all the stems down to about 24", cutting to an outside facing bud in the direction you want the new growth to take. Each new stem that develops should produce a flower. If your hydrangea still has flowers you can either leave them on the plant to enjoy this winter or cut them off, along with some of the stem, so the stems don't droop under the weight of wet flowers after a rainstorm.
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