Pruning shade and ornamental trees during dormant season is ideal due to inactive growth and dropping temperatures. Dormant pruning helps trees and shrubs endure damage from severe winter weather, paving the way for healthy growth in the spring. When it comes to the health of your trees, the best time to consider pruning is late fall to early spring.
Fresh pruning cuts and bruises typically heal faster during dormant season and are also less likely to attract disease-carrying insects. Pruning during the infectious spring and summer seasons carries the risk of spreading disease to trees. In warmer seasons, for example, pruning cuts lure fungus-spreading beetles. If there is disease or damage already present, it’s also more visible because the trees are bare.
Oak trees are especially vulnerable to oak wilt disease when pruned during the spring and summer. If infected, other oaks on your property are immediately put at risk as well.