College or universities offer coursework and or degree programs that focus on horticultural therapy. The following college or universities offer at least one course in horticultural therapy.

The information below is provided for informational purposes only. Currently, AHTA does not review or accredit college level coursework in horticultural therapy. Visit AHTA's Accredited Certificate Programs for more information. 

If you are applying for professional registration and have not taken courses through one of AHTA's Accredited Certificate Programs, you may be required to submit a copy of your horticultural therapy course syllabi with your application for professional registration. More information can be found in the AHTA's Professional Registration Policies and Procedures Manual.


Colorado State University (in collaboration with Horticultural Therapy Institute)

Degree offered: B.S. in Horticulture with a concentration in Horticultural Therapy

Contact information:
Department of Horticulture and Landscape Architecture
301 University Ave.
Shepardson 111
Colorado State University
Fort Collins, CO 80523-1173

Phone: 970-491-7019

Email: [email protected]

Visit the website for more information.


Murray State University

Degree offered: A degree in horticulture, no concentration in horticultural therapy

HT Courses offered: AGR 463-Horticultural Therapy

Contact information:
Huston School of Architecture
Murray State University
102 Curris Center
Murray, KY  42071

Phone: 270-809-7056

Email: [email protected]  

Visit the website for more information.


Kansas State University

Degree offered: B.S., M.S. or Ph.D, no focus in horticultural therapy
Online graduate certificate in Horticultural Therapy available

Contact information:
Dr. Cynthia Domenghini, Program Director
Department of Horticulture, Forestry and Recreation Resources
2021 Throckmorton Plant Science Center
Manhattan, KS  66506

Phone: 805-423-1999

Email: [email protected]

Visit the website for more information.


Nazareth College of Rochester

Degree offered: B.A. or B.S. with horticultural therapy minor

Contact information:
Dr. Beverly Brown, HTR
4245 East Avenue
Peckham Hall 104
Rochester, NY  14618

Phone: 585-389-2555

Email: [email protected]

Visit the website for more information.


Oregon State University

Degree offered: B.S. in Horticulture with a concentration in Therapeutic Horticulture

Contact information:
Oregon State University
Department of Horticulture
4017 Agriculture and Life Sciences Building
Corvallis, OR 97331-7304

Phone: 541-737-3695

Visit the website for more information.


Portland Community College 

Degree offered: Therapeutic Horticulture Activity Specialist Certificate 

Contact information:
Jan Abushakrah, PhD
Gerontology Program Sylvania Campus SS1
Portland Community College
12000 SW 49th Avenue
Portland, OR 97219

Phone: 971-722-4077

Email: [email protected]

Visit the website for more information.


Rutgers University

Degree offered: B.S. in Plant Biology with an option in horticultural therapy

Contact information:
Joel Flagler, HTR
Department of Environmental and Biological Sciences
Rutgers, The State University of New Jersey
59 Dudley Road
New Brunswick, NJ  08901-8520

Phone: 201-336-6780

Email: [email protected]

Visit the website for more information.


Tennessee Tech University

Degree offered: B.S. in Horticulture, with 1 course in horticultural therapy

Contact information:
Dr. Douglas Airhart, HTM
Tennessee Tech University
1 William L Jones Drive
Cookeville, TN 38505

Phone: 931-372-3288

Email: [email protected]

Visit the website for more information.


University of Tennessee, Knoxville

Degree offered: B.S., M.S. in Plant Sciences, with 3 courses in horticultural therapy

Courses offered:

Independent study with specific focus on horticultural therapy

PLSC 493/593 - Horticultural Therapy Program Design

PLSC 493/593 - Horticultural Therapy Techniques and Practice

PLSC 439 - Introduction to Horticultural Therapy

Contact information:
Derrick Stowell, MS, HTR, CTRS
University of Tennessee Gardens
252 Ellington Plant Science Building
2431 Joe Johnson Drive
Knoxville, TN 37996

Phone: 865-567-7288

Email: [email protected]

Visit the website for more information.