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!



Select the class(es) for which you wish to register:

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Quantity and Pricing
Field ID of Landscape Trees
Ken LeRoy
Certified Arborist Representative, John B. Ward Tree Experts

Join us for a two-day class on the identification of woody landscape plants for urban and suburban landscapes. The class will cover both deciduous trees and conifers. Arborist and horticulturist, Ken LeRoy, will show us how to use a dichotomous key to identify plants and will explain the terminology used in keys to describe plant characteristics. He will also discuss the physical characteristics used to group plants into families. We will go on a tour of the Morris Arboretum to see specimens of the plants we discuss. You may want to purchase the Sibley Guide to Trees, a good reference for tree identification that is available in the Arboretum’s Shop. Please dress for the weather.

This course carries 11.5 CEUs for ISA certified arborists (S=6, P=5.5, M=0) and 6 CEUs per day for Pennsylvania landscape architects.

Thursday and Friday, October 27 & 28
Fee: $270 (includes lunch)
9 a.m. - 4 p.m.
Irregular classes scheduled starting 10/27/2016 and ending 10/28/2016 at 9:00AM
Attendees: 1 $270.00 ea.

Fundamentals of Garden Mapping and Surveying
Wayne Cahilly
Manager, Institutional Mapping Department, New York Botanical Garden

This full-day class will introduce the garden manager, facilities manager, or gardener to the tasks required to precisely map plants and infrastructure within a garden. Techniques will range from proper use of tapes, to the benefits and pitfalls of mapping-grade GPS devices. Terrestrial surveying equipment and techniques will be introduced and demonstrated. Students will leave with a better understanding of the techniques, equipment, and costs of various mapping methods, and the level of staff commitment necessary to achieve their required level of precision. With nearly 30 years of experience in mapping and surveying, Wayne brings a wide range of skills, techniques and experience to the subject of garden mapping. Wayne also manages a consulting practice in which his scaled drawings of accident scenes are frequently used in litigation.

This course carries 5.75 CEUs for ISA certified arborists (S=2, P=2, M=1.75) and 6 CEUs for Pennsylvania landscape architects.

Friday, November 4
9 a.m. - 4 p.m.

Fee: $140 (includes lunch )
Single class scheduled on 11/4/2016 at 9:00AM
Attendees: 1 $140.00 ea.

Basic Pesticide Training Course
Clark Williams
Owner, Focus on Training

This course is designed for people who want to become Pennsylvania Certified Pesticide Applicators. It is the core, introductory portion, of the certification training and must be taken before any category certifications. The course will provide an introduction to the proper use and mixing of pesticides, reading and understanding labels, equipment maintenance and calibration, and record keeping, as well as an overview of Pennsylvania rules and regulations. Clark has been training applicators for many years through his company, Focus on Training, and previously worked as an utility/power line arborist.

This course carries 6.5 CEUs for ISA certified arborists (S=2.5, P=2, M=2).
*Note: The Pesticide Applicator Certification Exam will not be offered at the conclusion of this course. Test dates and locations can be accessed through the Pennsylvania Department of Agriculture website (

Thursday, November 10
8:30 a.m.- 4:30 p.m.

Fee: $120 (includes lunch)
Single class scheduled on 11/10/2016 at 8:30AM
Attendees: 1 $120.00 ea.

Trees and the Law
Rachel Roat
Attorney Specializing in Tree, Neighbor, and Garden Law

Rachel Roat is an attorney and master gardener who considers herself a "tree hugger." She will provide information on our rights and responsibilities in the garden, yard, and neighborhood. Rachel helps neighbors work out the tricky questions that arise when trees grow out of bounds, present hazards, block views, or are more loved by one party than by another. If a tree grows across the boundary between two properties, and now resides in two yards, it can give rise to many questions, including "Whose tree is it?", or "Who can cut it down or trim the branches?", "Who has to rake the leaves?", or "If it falls on my roof, who pays?" Rachel hates to see issues like this go to court, and her legal services include advice, negotiation, mediation, and then litigation, as a last resort.

This course carries 5.25 CEUs for ISA certified arborists (S=0, P=0, M=5.25).

Thursday, November 17
9 a.m. - 3:30 p.m.

Fee: $135 (includes lunch)
Single class scheduled on 11/17/2016 at 9:00AM
Attendees: 1 $135.00 ea.

Report Writing for Arborists
Mike La Mana
Consulting Arborist, Heartwood Consulting

Robert Wells
Assistant Director, Arboriculture Outreach, Morris Arboretum

Good communication is essential to every facet of arboriculture. Reports, whether bids or cost proposals, management plans, risk assessments, or appraisals, are an effective communication tool that can ensure a positive outcome for any project. This course provides simple, easy-to-understand instruction to assist arborists in writing effective reports. Topics will include report-writing basics, the crucial elements of an effective report, and various report styles, from simple on-site field reports and estimates, to comprehensive booklet-style reports. One authored report from each student will be reviewed and critiqued, and report templates will be included in the take-home handouts. Mike and Robert are ASCA Registered Consulting Arborists as well as New Jersey Certified Tree Experts and Board Certified Arborists with extensive consulting experience.

This course carries 5.75 CEUs for ISA certified arborists S=0, P=1.75, M=4).

Friday, November 18
9 a.m. - 4 p.m.

Fee: $135 (includes lunch)
Single class scheduled on 11/18/2016 at 9:00AM
Attendees: 1 $135.00 ea.

TRAQ Training: ISA Tree Risk Assessment Qualification Course
Scott Sjolander
ISA Approved TRAQ Instructor

The TRAQ course was created by the International Society of Arboriculture (ISA). This training opportunity is sponsored by the New Jersey Chapter of the ISA and hosted by The Morris Arboretum at Medford Leas Retirement Community in Medford, New Jersey.

The course will provide a high level of training for arborists, landscape architects, and landscape management professionals in the fundamentals of tree risk assessment. This qualification promotes the safety of people and property by providing a standardized and systematic process for assessing tree risk. TRAQ is a two-day course followed by a half-day assessment that includes both a written and a field component. The course prepares the participant to take the TRAQ assessment to become ISA Tree Risk Assessment Qualified. It is required that you attend the course and successfully complete the assessment in order to receive the ISA Tree Risk Assessment Qualification. The content of this course will focus on the following areas: tree biology and mechanics, tree inspection and assessment, data analysis and risk categorization, and risk reporting.

The Tree Risk Assessment Qualification is valid for five years from the date the exam is passed. The qualification holder is required to retake the course and pass the exam every five years in order to maintain the qualification. To be able to register for the course and take the exam, you must have earned one of the following credentials:

- ISA Certified Arborist or Board Certified Master Arborist
- ISA Tree Risk Assessment Qualified
- A national certification or certificate in arboriculture
- Licensing or certification from an approved state/province program
- SAF Certified Forester
- ASCA Registered Consulting Arborist (RCA) status
- A degree in arboriculture, urban forestry, traditional forestry, or horticulture from an accredited college or university.

Confirmation packets are shipped three weeks prior to the start of class. Bring these materials with you to the class. The class takes place at Medford Leas Retirement community, One Medford Leas Way, Medford, NJ 08055.

This course carries 14.5 CEUs for ISA certified arborists (S=6, M=6, P=2.5).

Thursday, and Friday, January 12 & 13, 8 a.m. - 5 p.m. and Saturday, January 14, 8 a.m.- 11:30 am

You must download and complete THIS FORM (please click here) and return to the Morris Arboretum at:

ISA Members: $650 (includes lunches)
Non ISA Members: $750 (includes lunches)
Exam retake only $150
Irregular classes scheduled starting 1/12/2017 and ending 1/14/2017 at 8:00AM
Attendees: 1 $650.00 ea.

2016 Morris Arboretum · 100 E. Northwestern Avenue, Philadelphia, PA 19118 · 215-247-5777