Apr 22, While late February is best, you can prune boxwoods anytime except for late summer or early fall%(1). Oct 25, Boxwoods are grown mainly for their green foliage and not the seasonal flowers. Further, timing the pruning in accordance with the seasonal bloom may lead to overgrown shrubs.
Try to prune heavily before the growing season begins, usually before spring. During the growth period, prune regularly but shrubdelimbing.buzzted Reading Time: 4 mins. This video shows how to hard prune a Boxwood shrub. Every handyman that should watch and learn this! 1. Shorten one-third of the tallest branches in spring before new growth begins. Cut back to the desired height, making the cut just beyond an outward growing bud, if possible.
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Boxwood pruning. Boxwood is cut per standard restriction pruning procedure. In short, that's:: Cut the whole plant to a size that is shorter and narrower than the goal by one year's growth. Also cut some of the branches back by an additional year or two. Experts offer differing opinions as to when to prune boxwoods, but the United States National Arboretum says the best time to thin boxwood is early winter when plants are dormant with energy.
Mar 02, Deciduous plants used for foliage, such as cork bush (Euonymus alatus) and privet, can be treated similarly. As you cut them back, be sure to shape the plants somewhat wider at the bottom so sunlight can reach the lower branches. For flowering shrubs such as azalea, rhododendron, and lilac, pruning before they bloom removes some flowering buds.