Experts and BHG readers answer.
When to trim back shrubs
Thanks for writing. The general rule is that early summer is the best time to prune spring-blooming shrubs and winter or early spring is the best time to prune summer-blooming shrubs.
Learn more with our BHG.com pruning guide! http://www.bhg.com/gardening/trees-shrubs-vines/care/what-to-prune-when/