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.
Step 3. Prune your cedar hedges in the second year, when the shrubs are more than 3 feet tall. Prune your hedges in early spring, trimming 2 to 3 inches off the tops and sides of the hedges using sharp hedge cutters and making clean, even cuts.Make the tops of the shrubs slightly narrower than the bottoms.or example, if you want an 8-foot-long hedge, you'll need about five or six cedar shrubs (8 feet / 1.5 feet = 5.33 shrubs). Dig a trench that is as long as the desired hedge, the same depth as the cedar shrubs' planting containers and twice the width of the planting containers.