We specialize in Tree Removal, Tree Trimming and Pruning Professional Tree Care Specialists PRUNING - VS - TRIMMING The terms pruning and trimming are often used interchangeably, but surprising to most, there is a difference between the two. When you are removing the dead, loose, or infected branches or stems from its respective plant, you are pruning. Trimming, on the other hand, occurs when you are cutting back overgrown parts. Below are some of the many benefits from pruning and trimming on a regular basis.