Tree Appraisal

2018 update – Texas Supplement to the Guide for Tree Appraisal

(Note: This Guide should only be used with the 9th Edition of the Guide for Plant Appraisal)

This Texas Guide is designed to be used by professionals who need to perform plant appraisals involving casualties, damages and takings of plant materials.

You can purchase the Texas Supplement here.

This document represents the most recent update to the “Texas Supplement to the Guide for Plant Appraisal”, developed by the Texas Regional Plant Appraisal Committee under the auspices of the Texas Chapter  of the International Society of Arboriculture. It is intended to be utilized as a companion or supplement to the 9th Edition of the Guide for Plant Appraisal, written by the Council of Tree and Landscape Appraisers (CTLA) and published by the International Society of Arboriculture.

A Texas Chapter ISA Regional Plant Appraisal Committee is currently in the process of revising the Texas Supplement document to conform with the new methodology outlined in the 10th Edition to the Guide for Plant Appraisals that was recently approved and made available by CTLA. Check back periodically for updates.

If you are a member of the Texas Chapter ISA, you can contact John Giedraitis at for a free copy of the 2018 Texas Supplement. If not, you can purchase it here and as a bonus, you will also receive a free $55 Texas Chapter International Society of Arboriculture one-year membership.

You can purchase the Guide for Plant Appraisal, 9th Edition here.