Answer: Since these hydrangeas bloom on the previous year's wood, pruning themin the spring removes any flower buds. It is also possible that the buds or stems have frozen back during the winter, with the same result, no flowers. You might try giving it some extra winter protection and stop pruning for the most part. Pruning would normally be limited to removing any branches killed back by the winter cold and possibly, on older established plants, to thinning them to encourage new vigorous growth.
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