Depending on what you are trying to accomplish for your tree, the best seasons for pruning are winter and summer. We recommend avoiding pruning in the fall.
Prune your trees during the winter to encourage robust new growth in the spring. It is best to wait until the coldest part of the winter has passed before pruning.
Summer pruning can help control the growth of a tree or branch by slowing growth or “dwarfing” the development of a tree or branch. Summer pruning should take place after seasonal growth is complete. Defective limbs or limbs that are weighted down become more apparent after seasonal growth, and can be more easily identified and removed during the summer.