And even a dormant tree, still needs care during the winter months. New pruning guidelinesWe have always pruned deciduous trees in late winter, however new research shows the optimum time to prune is really in the late spring to early summer. It was determined that it is best to prune trees when they are most actively growing to promote quick wound sealing. Also, some trees such as maples, willows, birches and others will produce a lot of sap if pruned in the late winter or early spring, they should be pruned in late fall. Oaks should not be pruned from April-July to avoid damage from oak wilt disease, they can be pruned in the late fall as well.

Source: Daily Sun December 04, 2020 14:26 UTC