The two techniques are part of landscaping tree services. The objective of tree trimming is to ensure that overgrown branches are removed to pave the way for a tree to receive enough water and light. Tree pruning, on the other hand, is performed to remove dead, weak, or sick parts of the tree so that the undergrowth can thrive properly. Pruning is also meant to give shrubs specific shapes to enhance the beauty of your garden. The tool used in trimming is called a trimmer, while the one used in pruning is called shear. Regarding frequency, trimming may be performed twice annually, while pruning is done annually.