Pruning should be done in the winter and summer. Winter is the most common practice, as it is when the tree structure becomes more visible as most leaves have fallen. It’s best to perform this service after the cold weather has passed. Summertime shape-ups are for corrective and structural purposes. It allows you to direct the growth by slowing the branches you don’t want. Spring pruning is not recommended as it can limit the potential of the tree’s blooming throughout the year. Because decay fungi spread their pores during the fall, pruning is not recommended during this season.