School of Arboriculture

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Increase your tree and landscape knowledge! The Arboretum's Professional Courses, offer CEUs for arborists and landscape architects, and keep you at the forefront of your profession. These courses are open to professionals and novices, and are all taught by national leaders in their field of expertise.

Certified Arborists: Our courses carry International Society of Arboriculture Continuing Education Units (CEUs). If you are an ISA certified arborist and need to maintain certification by taking 30 credits over a three-year period, the following classes offer the opportunity to gain CEUs while learning from field experts.

Landscape Architects: Many courses are Pennsylvania CE certified.  If you are a Landscape Architect in Pennsylvania, specified courses will help you meet the requirements of the necessary course time of 24 clock hours / 2 years. 

Register for classes below! 


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Quantity and Pricing
Tree Appraisal Workshop
James Koman
Consulting Arborist

Assigning a fair monetary value to individual trees is an important skill for municipal and consulting arborists, as well as anyone who is responsible for managing a property, park, or arboretum. This workshop focuses on the theory and practice of the appraisal of woody plants. James will review the various approaches to valuation that are currently available and how to determine which is the most suitable choice. The primary focus will be on the Cost Approach and the Trunk Formula Method for determining monetary value. The outdoor component of the workshop involves simulated appraisals on several trees in the Arboretum with hands-on instruction. An analysis of each problem will follow. The instructional material follows the 9th edition of the Guide for Plant Appraisal (International Society of Arboriculture) as prepared by the Council of Tree and Landscape Appraisers (CTLA) and reflects current understanding and practice in arboriculture. Come prepared to be outside.

This course carries 6.5 CEUs for ISA certified arborists (S=2, P=2.25, M=2.25).

Thursday, April 19 - 8:30a.m. - 4:30p.m.
Fee: $140 (includes lunch)
Thursday, April 19, 2018 at 8:30 AM
Attendees: 1 $ 150.00 ea.

2017 Morris Arboretum · 100 E. Northwestern Avenue, Philadelphia, PA 19118 · 215-247-5777