Answer: Hydrangea produces flowers on new shoots that emerge from last year's wood. If your plants were pruned in spring, there may be no old wood to produce flowering shoots. It's best to prune immediately after flowers fade, reducing the height of the shoots that flowered, but not removing them completely, so they'll be ready to produce new flowering shoots the following spring. Pruned properly at the end of this growing season, your hydrangea should produce flowers next spring.
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