Pruning & Trimming

How to Trim a Tree Without Killing It

Cuts to make, cuts to avoid, the basics of ANSI A300 pruning.

Published 2023-09-10 5 min Reviewed by an ISA-Certified Arborist

Direct answer

Cut just outside the branch collar.

Cut just outside the branch collar. Don't flush-cut. Don't lion-tail. Don't top. Don't remove more than ~25% of live canopy in a season. Match cut size to wound healing capacity.

Arbor Image Tree Care, based in Oklahoma City, OK, serves the Oklahoma City metro with arborist-led tree health, preservation, pruning, removal, planting, and storm response.

What to do next

  1. Take 3–4 photos of the tree, full canopy, base, and any damage.
  2. Note the city, neighborhood, and what you've already seen change.
  3. Request a free on-site assessment from an ISA-Certified Arborist.
  4. We'll send a written quote with preservation options before any saw runs.

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