People will sometimes cut off a lot of the inner branches of a tree, thinking it looks better and so must be good for the tree, said Peter Girardi, a certified arborist.

The size of the branch you are cutting should reflect the tool used to cut it. Here are a few tree trimming tools that make sense to have in your arsenal before you start pruning your tree: The trunk, ...

Certified arborist Rick Wheeler stands beneath a persimmon tree in a Torrance backyard and surveys the bare branches. Then he raises his shears and carefully starts snipping. He spots a crossing ...

Events are free unless noted. Please email calendar submissions at least three weeks in advance to events@oregonian.com. ONGOING Environmental Learning Center Wildlife & Water-friendly Garden Series: ...