Trimming and pruning is a necessary part of encouraging vigorous and healthy growth for any tree or shrub. While trimming keeps your shrubs looking great and their growth controlled, pruning prevents weak spots, disease , tree rub (two branches touching) and dead branches on your trees.
Proper pruning improves the health and appearance of shrubs. It prolongs their useful life through the removal of undesirable branches, such as dead, weakened, diseased or those infected with insects