I then adjusted C5 and re-tested the thenar eminence - it was fine, elicited no pain, and her hand stopped tingling. I finished treating her and told her to return in two days. At the second visit, I tested the thenar eminence).
Pruning Your Boxwood. 1  1. Know when to prune your tree. Prune boxwood shrubs at any time between the last expected spring frost and six weeks prior to the first expected fall frost. 2  2. Use sharp bypass pruners to trim off dead, injured or diseased branches. Prune them off all the way to the base of the branch.
Cancel. Heavy pruning can sometimes damage a boxwood if you're not careful. Find out how far back Japanese boxwoods can safely be pruned without damage with help from a certified horticulturist in this free video clip.Part of the Video Series: Grow Guru.oxwood's are going to sprout from pretty much anywhere along their stem. So you don't have to worry too much about how far back to cut it. You can use a hedge trimmer to do this if you have a big hedge. I prefer to cut one branch at a time.