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
Managing Forest Fragments
Ken LeRoy - Arborist, John B. Ward & Co Tree Experts

Fragmentation of natural areas due to urbanization results in isolated forest fragments. Cut off by highways, rail lines, commercial and residential developments, these patches of green infrastructure surrounded by the built environment are often neglected. These disturbed landscapes can be managed to develop a healthier, safer, functioning forest. The potential of the earth to support optimum tree growth and carbon sequestration can be realized by following basic forestry practices: vine control; preferred species selection; thinning for fewer more efficient trees; soil health; wildlife enhancement; and, carving out access for people. All the earth is a garden and requires tending. Come and learn how to grow good woods in our community forests. This course carries 5.75 CEUs for ISA certified arborists (S=2, P=1.75, M=2).

Friday, March 3
9 a.m. - 4 p.m.
Friday, March 03, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

Introductory Tree Climbing
Zach Shechtman - Owner, Shechtman Tree Care
Rob Thigpen - Foreman, Shechtman Tree Care

This class provides an introduction to tree climbing and features the opportunity to have supervised climbing instruction in trees. It is ideal for tree companies looking to advance promising grounds staff, or gardeners and landscapers who want to add new skills. Effective methods for climbing trees will be demonstrated by instructors and practiced by students. Safety rules will be reviewed and stressed. Students will learn how to tie critical knots regularly used by arborists. Included in the fee, each student will receive a copy of The Tree Climbers Companion, by Jeff Jepson, a great resource for climbers. Bring an arborist’s rope and saddle, a hard hat, gloves, safety glasses, and insect repellent to the class. Wear boots, long pants, and dress for the weather. We will meet at Bloomfield Farm. Look for the paved road across Northwestern Avenue from the public garden entrance. Park in the lot and follow the signs to the Horticulture Center. This course carries 17.25 CEUs for ISA certified arborists (S=0, P=17.25, M=0).

Wednesday, Thursday, and Friday - March 15, 16, & 17
9 a.m. - 4 p.m.
Irregular classes scheduled starting 3/15/2017 and ending 3/17/2017 at 9:00AM
Attendees: 1 $ 525.00 ea.

Pruning Shrubs for Maximum Health and Beauty: A Hands-on Class
Vince Marrocco - Chief Horticulturist, Morris Arboretum

Pruning shrubs is an essential practice for a well-maintained landscape. While proper pruning is important, it is not difficult if you understand the basics. This class teaches the principles of why, when, and how to prune a variety of shrubs and hedges. A morning lecture and demonstration will be followed by an afternoon session of supervised, hands-on pruning. Please bring your pruning tools and dress appropriately for the weather. This course carries 4.5 CEUs for ISA certified arborists (S=1.5, P=2, M=1).

Tuesday, March 21
10 a.m. - 3 p.m.
Tuesday, March 21, 2017 at 10:00 AM
Attendees: 1 $ 120.00 ea.

Reading the Land through Climate Change: Local Plant Adaptation Past, Present, and Future
Mark Demitroff - Adjunct Professor, Stockton University

Ancient climate change profoundly influenced the character of the flora that we cherish today. Local ecosystems and the native plants that depend upon them owe much of their inheritance to cold, nonglacial processes that characterized much of the last 2.5 million years. We will reconstruct local past environments through geology, climatology, and plants to help develop a long-term view of ever-changing plant adaptation. We will then be better able to preserve and manage habitat in the
future. Mark is a board director for the U.S. Permafrost Association and for South Jersey Culture and History Center. He lectures internationally and publishes on ancient climate change and permafrost, and Quaternary Science. A native of the Pinelands, Mark consults and provides expert witness testimony as a New Jersey Certified Tree Expert. This course carries 5.75 CEUs for ISA certified arborists (S=3, P=1, M=1.75).

Friday, March 24
9 a.m. - 4 p.m.
Friday, March 24, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

Fundamentals of Soil Science
Dr. Rex Bastion - Regional Technical Advisor, Davey Tree Expert Company/The Care of Trees
Mark Highland - Founder, The Organic Mechanics Soil Company

We have always known that soil is extremely important for growing plants. It is estimated that 80% of the problems we see with urban trees originate from improper soil conditions. Until recently we primarily considered the chemical and physical components of soil like texture, pH, compaction, and nutrient levels. The latest findings show that the living components of soil are at least as important as the chemical parameters. With the help of soil bacteria, fungi, protozoans, and other living
creatures, we can create greener landscapes and reduce our reliance on petroleum-based fertilizers and chemicals. This course carries 5.75 CEUs for ISA certified arborists (S=3.75, P=1, M=1),
and 6 CEUs for landscape architects.

Thursday, March 30
9 a.m. - 4 p.m.
Thursday, March 30, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

Caring for Mature Trees
Dr. Rex Bastion - Regional Technical Advisor, Davey Tree Expert Company/The Care of Trees
Robert Wells - Associate Director, Arboriculture Outreach

Learn how to care for aging trees and the changes that occur as trees age Trees, like all living things, survive through the transfer of energy. This transfer occurs both within the tree itself, as well as between the tree and its environment. Far from being static processes, however, energy relations are highly dynamic, constantly changing as trees age, decline, and die. The astute arborist should be aware of these changes, so as to provide the best advice and management recommendations to his or
her clients for the care of older trees in the built landscape. Rex joined The Care of Trees in 1989 after receiving his Ph.D. from Iowa State University, majoring in Entomology. He is a Regional Technical Advisor with the Davey Tree Expert Co./The Care of Trees, with emphasis on education and training, public relations, and diagnostics. He is an International Society of Arboriculture Board Certified Master Arborist and currently serves on the ISA Board Certified Master Arborist Test. This course
carries 5.75 CEUs for ISA certified arborists (S=3, P=.75 M=2).

Friday, March 31
9 a.m.- 4 p.m.
Friday, March 31, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

Tree Appraisal Workshop
James Korman -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 Methodology 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 6.75 CEUs for ISA certified arborists (S=2, P=2.5, M=2.25).

Friday, April 7
8:30 a.m. - 4:30 p.m.
Friday, April 07, 2017 at 8:30 AM
Attendees: 1 $ 135.00 ea.

Insect Pests of Woody Plants
Richard Buckley - Director, Plant Diagnostic Laboratory, Rutgers University

Richard Buckley, a plant pathologist at Rutgers University, will focus on the most important insects and mites that pose a threat to landscape plants. You will learn about insect pests that are most prevalent in our region and discuss how to identify them and the damage they cause. Richard will bring you up to date on best management practices. He will also discuss the latest findings on Chinese lantern fly, Viburnum leaf beetle, emerald ash borer, and walnut twig beetle as well as several other new invaders. This course carries 5.75 CEUs for ISA certified arborists (S=3, P=1, M=1.75).

Tuesday, April 11
9:00 a.m. - 4:00 p.m.
Tuesday, April 11, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

Emerald Ash Borer: Controlling the Spread
Joel Spies - President, Rainbow Treecare Scientific Advancements
Shannon Herbst - Mid-Atlantic Territory Manager, Rainbow Treecare Scientific Advancements

The spread of emerald ash borer (EAB) into Eastern Pennsylvania and New Jersey is a major challenge and opportunity for Philadelphia area arborists to preserve worthwhile ash trees in the landscapes we manage. One of the most efficient and environmentally safe methods of pesticide application is microinjection technology that allows you to apply systemic products to targeted trees in a responsible manner. Microinjection is also an effective way to deliver a host of other fungicides and plant health care products. A key factor in achieving safe and effective applications is a thorough understanding of the injection techniques and products that are available. This one-day workshop will provide you with a background in microinjection and an overview of all of the available products and equipment on the market. You will have a hands-on opportunity to practice an application on an ash tree. This course carries 5.75 CEUs for ISA certified arborists (S=2, P=1.75, M=2).

Friday, April 21
9 a.m. - 4 p.m.
Friday, April 21, 2017 at 9:00 AM
Attendees: 1 $ 135.00 ea.

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