Morris Arboretum

Morris Arboretum

Connecting people, plants, and place.

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Urban Forestry Team Members

The Morris Arboretum's Urban Forestry Consulting team includes both nationally and regionally recognized experts in tree care.

Jason Lubar, Associate Director of Urban Forestry

International Society of Arboriculture (ISA) Board Certified Master Arborist, ISA Qualified Tree Risk Assessor, American Society of Consulting Arborist (ASCA) member

Mr. Lubar has been a part of the Morris Arboretum's Urban Forestry Consultants for over a decade. Jason is a PennDel ISA Board Member and serves on Penn-Del’s Nursery Quality Task Force. He also is on the Executive Board and is treasurer of the Pennsylvania’s Urban and Community Forestry Council. Before joining Morris Arboretum, he served as a consultant and employee of various local urban forestry groups and related organizations. He co-founded the Wissahickon Stewardship Program; a community-based natural resource management program in Philadelphia’s Fairmount Park and has been involved in many other environmental programs.

Contact Jason Lubar at 215.247.5777 x189 or

Robert Wells, Associate Director of Arboriculture

International Society of Arboriculture (ISA) Board Certified Master Arborist, ISA Qualified Tree Risk Assessor, American Society of Consulting Arborist (ASCA) member, New Jersey Certified Tree Expert #257

Mr. Wells has 35 years of experience as the owner of a private tree care firm in Princeton, New Jersey. He graduated from Cook College, Rutgers University with a B.S. in plant sciences, and is a NJ Certified Tree Expert and an International Society of Arboriculture (ISA) Board Certified Master Arborist. Mr. Wells is also an active member of the Tree Care Industry Association and the American Society of Consulting Arborists. Mr. Wells has served as the chair of the Princeton Township Shade Tree Commission for 15 years.

Contact Robert Wells at 215.247.5777 x144 or

Corey Bassett

Trish Kemper, Martha S. Miller Endowed Urban Forestry Intern

Trish Kemper graduated from Temple University in 2015 with a Master’s degree in landscape architecture. The MLA program has a strong emphasis on ecological restoration with many environmental courses including, native woody plants, forest ecology and wetland ecology. Trish’s thesis/capstone project was the design of a 48 acre park at the confluence of the Delaware and Schuylkill Rivers on the active U.S. Army Corps dredge facility that could be the final node along the Schuylkill River Trail. The design included pedestrian trails, boardwalks and overlooks through a recreated freshwater tidal marsh, an Atlantic coastal plains forest, wet meadows and upland forests. Her career goal is to use her knowledge of design, native plants and sustainable practices to create inviting and ecologically beneficial open spaces. Previously, she has interned at the Wissahickon Vally Watershed Association and worked at Leon’s Garden World in Wilmington, Delaware. On the weekends, Trish enjoys playing guitar, gardening, and hiking and birding with her family throughout Pennsylvania.

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Arboriculture Services

Urban Forestry Team

School of Arboriculture

Did you know...

Urban Forestry Consultants diagnose problematic tree health and safety conditions by using the most up-to-date specialty tools such as a mechanical recording resistance drill.

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Weather Alerts

The Arboretum is open as usual. Click here for hours.

Please note that weather conditions can change quickly, check back or call (215) 247-5777 before heading out for a visit.

Weather conditions may limit garden access to certain features even if the garden is open – please check the web site or call (215) 247-5777 for updates before visiting. Our visitors’ safety in the garden is our top priority. Therefore when inclement weather is predicted, we will make decisions about closing the garden accordingly.