When Should You Prune Trees?
When to prune a tree depends largely on what needs to be accomplished by the pruning and the type of tree. Light pruning and removal of dead or diseased branches can be done at any point during the year.
Pruning during winter dormancy in the most common practice for deciduous and coniferous trees. In winter pruning, be sure to wait until the coldest part of the season has passed. Winter pruning encourages a strong spring growth. After winter pruning, some species will produce sap in the cut areas. This is harmless and stops when new growth begins.
Pruning during summer can help in shaping the tree or slowing growth in undesired areas. It is best done after the season’s growth is complete. It is also easier to spot diseases and branches that weight threatens to break.
Pruning flowering trees is often done to enhance flower production. Prune trees that bloom in the early to late spring after the flowering is complete. Prune trees that bloom from the middle of summer to fall during the winter dormant season before buds begin to form.
Do not prune trees during the fall months. Mold and fungi often spread spores heavily during the fall. In addition, trees are slowing growth for the winter dormant season and are slower to heal.