If you want to control the growth you will have to do pruning more.
Nov 21, Pruning encourages new soft growth that is susceptible to frost damage, so hold off trimming your boxwoods till late spring if you plan to do hard pruning; light tip pruning can be done any time. I think your yews may have gotten sunburned in late Estimated Reading Time: 1 min. Dec 28, When you inherit an overgrown boxwood, use sharp pruning tools sterilized with household antiseptic cleaner or a solution of 1 part bleach to.
Jun 29, Selective Pruning of Boxwood Use a sharp pair of bypass hand pruners to selectively remove stray, damaged or dead branches. Make your cut at a point along the branch just above the main form of the plant.
The new growth is pliable and tender and needs the time for the new branches to harden before the cold.
Remove dead branches to a point a couple inches below their point of origin. Jul 01, Viewers enjoy our videos on shearing Boxwoods, so here's another one getting trimmed with the gas-powered trimmers in just three minutes!