The colleges and universities noted below offer an undergraduate or graduate degree in horticulture with a concentration in horticultural therapy.  The information below is provided for informational purposes only.  

For students interested in professional registration:  Students taking horticultural therapy courses independent of an AHTA accredited certificate program should seek academic advisement to ensure that the horticultural therapy coursework taken will meet the requirements for professional registration.  

To help you review the horticultural therapy coursework requirements, reference the outline of content areas for horticultural therapy courses.  


Colorado State University 

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.


Delaware Valley University

Degree offered: B.S. in Horticulture with Option in Horticultural Therapy

Contact information:
Department of Landscape Architecture and Environmental Sciences
700 E. Butler Avenue
Doylestown, PA 18901

Phone: (215) 297-0681 

Email: [email protected] 

Visit the website for more information.


University of Florida

Degree offered: B.S. in Horticultural Science with a specialization in Horticultural Therapy

Contact information:
Wilmot Gardens at the College of Medicine
2023 Mowry Road,
Gainesville, FL 32610

Phone: (352) 294-5003

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
  • Introduction to Horticultural Therapy
  • Horticultural Therapy Program Management  
  • Horticultural Therapy Techniques and Practice

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.