AHTA-Accredited Certificate Programs

The following programs have been accredited by AHTA. To apply to become an accredited certificate program, visit the Education page.

Chicago Botanic Garden - Horticultural Therapy Certificate Program

Information from program website: One year, 12 credit hour college-accredited certificate program through taught by staff of the Chicago Botanic Garden combines online learning with two clinical 4 day face to face sessions for hands-on training. Specifically designed to meet the needs of working professionals in compatible fields such as education, social work, rehabilitation, and psychology. The program includes application of theory, principles, assessment, goal setting, session planning, therapeutic garden design, and program development, allowing students to gain experience and skills in basic horticultural skills, understanding the theory and delivery methods unique to horticultural therapy. All course work is accredited through the Garden's partnership with Oakton Community College.

Main Contact:  Adult Education Department
Email:  htcertificate@chicagobotanic.org
Phone:  (847) 835-8293

Address: Adult Education Department
                Chicago Botanic Garden
                1000 Lake Cook Road
                Glencoe, IL 60022

Visit the website for more information.


Delaware Valley University - Horticultural Therapy Certificate Program

Information from program website: Horticultural Therapy Certificate Program, accredited by the American Horticultural Therapy Association, provides students with a hands-on opportunity to learn the knowledge and skills required to work in social, therapeutic and vocational horticultural settings. Students study the theory and history of horticultural therapy, and gain experience developing treatment plans and therapeutic activities for a variety of client populations, as well as how best to engage clients in therapeutic activities. Students will learn about designing facilities for special populations and getting started in establishing and managing a horticultural therapy practice. The certificate program starts every fall semester and can be completed in three consecutive semesters of part-time evening study.

Main Contact:  Nancy A. Minich, HTR, RLA, ASLA
Email:  nancyminich6575@gmail.com
Phone:  215-489-2293

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

Visit the website for more information.

Horticultural Therapy Institute (HTI) - Horticultural Therapy Certificate Program

Information from program website: The HTI's Horticultural Therapy Certificate trains professionals in the core knowledge of horticultural therapy. Based in Denver, Colorado, the Institute has reached students from nearly every state in the U.S. and across the globe through an intensive format. Additionally, they have expanded to offer certificate courses in other parts of the U.S.

Unique course format:
  • Accommodates working adults and students
  • Requires minimal travel, with only four visits to the class site
  • Offers significant face to face instruction with interaction
  • Four or five-day class meetings combined with pre and post class assignments done at home
  • Provides opportunities to capitalize on the breadth of experience of students and instructors

Allows certificate completion in one year

Main contact: Rebecca Haller, HTM
Email: rhaller@htinstitute.org
Phone:  303-388-0500

Address: P.O. Box 461186
                Denver, CO  80246

 Visit the website for more information.

Kansas State University - Horticultural Therapy Graduate Certificate

Information from program website: A graduate certificate in horticultural therapy involves plant science and horticultural techniques to improve the quality of life in a therapeutic setting for individuals with mental or physical challenges. This program is built around the busy lives of health and human service professionals, horticulturalists and educators who work with people with disabilities, older adults and those recovering from illness. The 12-credit-hour program is designed to enhance the credentials and professional stature of working professionals in their current positions and to advance in their career.

Kansas State University also offers a M.S. and Ph.D with a focus in horticultural therapy.

Online option for certificate:  Yes

Main contact:  Dr. Candice Shoemaker, Ph.D, HTR
Email:  cshoemaker@ksu.edu
Phone:  785-532-1431

Address:  Department of Horticulture, Forestry and Recreation Resources
                 2021 Throckmorton Plant Science Center
                 Manhattan, KS  66506

Visit the website for more information.


Legacy Health System - Horticultural Therapy Certificate

Information from the program website: Legacy offers a therapeutic horticulture six-course series accredited by the AHTA. Portland Community College Gerontology Program provides the college credit for these classes. Classes meet at the six hospital campuses of Legacy Health.  Teresia Hazen, MEd, HTR, QMHP has been the course instructor since 1997. The course series begins with GRN 267 An Introduction to Professional Therapeutic Horticulture. The courses run in sequence and build upon each of the previous courses. Register now at Portland Community College. Contact Teresia Hazen, with any questions.

Main contact:  Teresia Hazen, MEd, HTR, QMHP
Email: thazen@lhs.org

Address:  Legacy Health
                 1015 NW 22nd Ave., Suite 529
                  Portland, OR  97210

Visit the website for more information. 


New York Botanical Garden - Horticultural Therapy Certificate

Information from the program website: If you have a passion for plants and helping people, then pursue horticultural therapy and learn how to bring people and the natural environment together for healing purposes. Acquire the therapeutic skills and horticulture techniques needed to serve a broad population of people in need. Enroll in a single class or pursue a Horticultural Therapy Certificate.

Main contact: Adult Education Department
Email: adulted@nybg.org

Address: Adult Education Department
                The New York Botanical Garden
                Watson Building, Room 306
                2900 Southern Boulevard
                Bronx, NY  10458-5126

Visit the website for information. 


Rutgers University - Horticultural Therapy Certificate

Information from program website: The profession of horticultural therapy employs plants, gardens, and greenhouses as tools for treating mental, physical, and social disabilities. The profession requires the integration of plant systems and culture techniques with human psychology and health. This program, which is fully accredited by the AHTA, will enable students to pursue professional registration through the AHTA.

Rutgers also offers a B.S. in Plant Biology with an option in horticultural therapy.

Main contact: Joel Flagler, HTR
Email:  flagler@aesop.rutgers.edu
Phone: 201-336-6780

Address:  Department of Plant Biology and Pathology
                 School of Environmental and Biological Sciences
                 Rutgers, The State University of New Jersey
                 59 Dudley Road
                 New Brunswick, NJ  08901-8520

Visit the website for more information.


Temple University – Horticultural Therapy Certificate Program

Information from program website: The Temple University Horticultural Therapy Certificate program is accredited by the American Horticultural Therapy Association, and is designed for people interested in the profession of horticultural therapy. It is available to all Temple undergraduate students, and is also available to those persons seeking the certificate on a non-matriculated basis. The program offers students the opportunity to obtain the skills required to work in various therapeutic and vocational settings. Through hands-on practice, students learn therapeutic garden design, along with HT theory, principals, and program development. The business of managing a horticultural therapy practice for a variety of populations is included in the course work. 

Main contact: Peg Schofield, MA, HTR
Email:  peg.schofield@verizon.net
Phone: 610-952-0297

Address:  Department of Landscape Architecture & Horticulture
                 School of Environmental Design
                 Temple University Ambler
                 580 Meetinghouse Road
                 Ambler, PA 19002 

Visit the website for more information.