Tree and Shrub Trimming: 4 Safety and Technique Basics

Trimming trees and shrubs keeps them healthy and your property tidy — but a wrong cut near a power line is dangerous, and bad technique tears the bark and harms the plant. Four basics cover it: the right tool, the power-line rule, the right season, and the 3-cut method.

What tool should I use for trimming?

Use the right tool for the branch thickness. Hand pruners for small stems (up to ~¾ inch), loppers for medium branches (up to ~1½–2 inches), and a pruning saw for anything bigger. Forcing the wrong tool crushes the cut, tires you out, and damages the plant. Sharp, clean, properly-sized tools make clean cuts that heal well.

Is it safe to trim trees near power lines?

No — never trim near power lines. Call your utility company; it's usually free. Branches near or touching power lines are a serious electrocution and fire hazard, and utilities have trained crews who handle it (often at no cost to you). Never use a ladder, pole saw, or anything that could contact a line. This is the one trimming task you should never DIY.

When should I prune trees and shrubs?

Prune in late-winter dormancy, not fall. Most trees and shrubs prune best in late winter while dormant — it's easier to see the structure, the plant heals quickly in spring, and you avoid the disease and weak-growth problems that fall pruning can cause. (Spring-flowering shrubs are the exception — prune those right after they bloom.)

What is the 3-cut method?

Use the 3-cut method so you don't tear the bark. For any branch heavy enough to tear: (1) an undercut a foot or so out from the trunk, (2) a top cut a bit farther out to drop the branch cleanly, then (3) a final cut at the branch collar to remove the stub. This keeps the falling branch from ripping a strip of bark down the trunk — a wound that invites rot and pests.

Track yard work

Logging pruning and any tree-service visits keeps your landscape on schedule. Okoniq Property Hub keeps it with your home maintenance records in one private place.

Frequently asked questions

How much of a tree can I safely prune at once?

Generally no more than about 25% of the canopy in a season — over-pruning stresses the tree. Remove dead, damaged, and crossing branches first.

When should I call an arborist?

For large trees, anything near power lines or structures, big limbs overhead, or a tree that looks diseased or unstable. Those carry real danger and are best left to a certified, insured arborist.

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