Answer: I wouldn't toss them out just yet. Hydrangeas flower best when they get 4 hours of morning sunshine. They produce flowering stems from the old wood so the best time to prune is in the spring, just as the leaf buds begin to swell on the stems. At that time cut everything down to about knee level. The new shoots that develop on what is remaining of the old wood will produce flowers.
Enjoy your garden!
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