AHTA Accredited Certificate Programs

What is an AHTA Accredited Certificate Program?

An AHTA Accredited Certificate Program is a college-level educational program that offers the equivalent of nine (9) semester credits in horticultural therapy coursework.  The AHTA accredited certificate programs provide a foundation in the theory and application of horticultural therapy for diverse populations.

An AHTA Accredited Certificate Program is one that has applied for and received accreditation status by the American Horticultural Therapy Association. The AHTA Certificate Program must maintain accreditation based on the standards set by the Association.

Accreditation ensures that horticultural therapy certificate programs meet nationally endorsed standards in the profession. Certificate programs accredited by AHTA offer all nine (9)-semester credit hours within their educational program. 

An AHTA Accredited Certificate Program provides course content that fulfills the requirements for professional registration with the American Horticultural Therapy Association. An AHTA Accredited Certificate Program may be offered as a component of an academic degree program to fulfill the requirements of a degree in horticulture with a concentration in horticultural therapy. To meet the requirements for professional registration with the American Horticultural Therapy Association, horticultural therapy coursework completed as part of the certificate program, independent of bachelor’s/master’s degree, must be from an AHTA Accredited Certificate Program.

How to become an AHTA Accredited Certificate Program?  Read more.

AHTA Accredited Certificate Programs

The following certificate programs have been accredited by the American Horticultural Therapy Association.  For current certificate program schedules, visit the program website or reference the AHTA accredited horticultural therapy course schedule.

Delaware Valley University

Main Contact: Yolanda Udvardy

Email: [email protected]
Phone: (215) 297-0681 

Visit the website for more information.


University of Florida

Main Contact: Elizabeth (Leah) Diehl, RLA, HTM

Email: [email protected]   
Phone: (352) 294-5003

Visit the website for more information. 


Horticultural Therapy Institute (HTI)

Main Contact: Christine Capra

Email: [email protected]
Phone: (303) 388 0500

Visit the website for more information.


New York Botanical Garden

Main Contact: Phyllis D'Amico, HTR

Email: [email protected]
Phone: (718) 817 8595

Visit the website for more information.


Portland Community College

Main Contact: Jan Abushakrah, PhD

Email: [email protected]
Phone: (971) 722 4077

Visit the website for more information


Rutgers, The State University of New Jersey

Main Contact: Gary Altman MS, CRC, HTR

Email: [email protected]
Phone: (848) 932-6321

Visit the website for more information.


Temple University

Main Contact: Peg Schofield, MA, HTR

Email: [email protected]
Phone: (215) 777-9090

Visit the website for more information.