Pruning dead and dying limbs can prevent the attraction of harmful pests to the tree. Pruning may increase the size and amount of flowering. Pruning one flower causes the growth of multiple flowers. Pruning for flowering purposes should not change the form of the tree. Be careful not to excessively prune causing the growth of unwanted shoots.
Correct timing is important to improve flowering.
Cutting out unwanted growth can prevent limbs from growing where they are not wanted. Cutting a limb that over hangs a power-line would be a good example. These types of limbs are considered hazardous. Be cautious not to damage the tree while cutting the hazardous limb. Pruning crossing or rubbing limbs may prevent future damage to the tree.