Heavy pruning in late winter or early spring will reduce or eliminate the flower display for 2 or 3 years. However, rejuvenation pruning will restore the health of the shrubs.
The best time to prune healthy, well-maintained spring-flowering shrubs is immediately after flowering. Pruning less of the plant but more frequently is by far the best for the overall health of it. We recommend every other month, which comes out to be five times per year. This is the sweet spot for pruning and will help keep everything looking and performing its best. Sep 02, In general, prune needle-bearing evergreen shrubs in early spring, toward the end of dormancy and before the emergence of new growth.
Pruning the evergreens at this time allows plenty of time for new growth to emerge, as well as plenty of time. It says"If a plant flowers before May 1, prune just AFTER it blooms. If it blooms May or later, prune in late winter/early stumpchopping.buzzted Reading Time: 6 mins.