Pruning your trees and shrubs is a gardening task that should be done on a fairly regular basis. It depends on the species of plants and your desired outcomes as to when and how much you’ll cut. Pruning can help “rehabilitate” plants, promote new growth, change the spacing between plants, encourage more flower and fruit production amidst many other things.
For an in depth overview of proper pruning checkout: Pruning Fact Sheet
Having good tools also helps. Here’s a list of reviewed pruners: The Spruce:12 Best Pruners of 2024
Attend the “Pruning Trees and Shrubs” workshop, part of VINES Green Thumb series, to get a great overview of the necessary tips and tricks for making healthy cuts for a happy garden.