Evergreens such as boxwoods may lose moisture from their leaves in winter faster than their roots can replace it from frozen soil. They are especially vulnerable to drying out in freezing temperatures and cold winds. … It is generally not necessary to protect boxwoods with burlap except in certain circumstances.
Should you wrap your boxwoods in winter?
Things You’ll Need A burlap wrap protects the foliage from cold dessication and minimizes winter damage. Apply wraps to boxwoods after the first hard frost, since warm fall weather can cause the shrub to overheat if it’s wrapped too early.
When should I cover my boxwoods?
Apply mulch around the shrubs in the fall to help insulated moisture throughout the winter. Apply lime to alkalize the soil around boxwood shrubs. Apply 1 inch of compost around the shrubs once a year.