The best time to trim trees and shrubs is in late winter or early spring, before new growth begins. Pruning during dormancy reduces the risk of disease because less sap will be flowing through the branches. Winter is also a good time to remove dead or damaged branches, as well as suckers (branches that grow from the base of the trunk).

The best time to prune most deciduous trees is late winter or early spring, before new growth begins. For evergreens, the best time is during the dormant season. Always check with your local nursery for specific guidance about when to prune your type of tree or shrub.