Once the tree is 2 to 5 years old, prune it to improve canopy shape, structure and health. Never remove more than 25 percent of the tree canopy when pruning. Begin by removing any dead, diseased ...

Randy L. Rasmussen/The Oregonian The Burrell elm on Southwest 10th Avenue was Portland's first Heritage Tree. Elm tree owners take note: No pruning will be allowed after Wednesday. The annual ...

If you have to climb in the tree to do the pruning, it's wise to hire a professional. Think of safety first. If the job seems more than you can handle safely, please call in a state licensed arborist.

Pruning is a science, but it doesn’t have to be intimidating. Just follow these easy guidelines. Elizabeth Exstrom: Pruning trees correctly involves the right tools and some planning ...