Trimming a tree is a common practice in gardening and landscaping. Pruning, which is the process of removing dead or overgrown branches, is done to maintain the health of the tree and to improve its shape. Decorating a tree is also a popular activity, often done around the holidays. This involves adding decorations such as lights, ornaments, and garlands to the tree. Both pruning and decorating a tree are important steps in keeping it healthy and looking its best.