I have several mature English boxwoods, 40+ years. I have lost three in the last 3 years and the remaining four took a severe beating in the Washington DC 28 inches of snow, one losing its entire center. While new leaves are coming out on the now exposed branches in the center, some 10% of the remaining branches have leaves that are turning orange, then bronze and finally dying. Can you help with what may be happening?
Certified GKH Gardening Expert
It could be a fungus but it also be from winter burn. Treat the plant with a fungicide and that should help clear it up. You can also remove the dying foliage.