AHTA Horticultural Therapy Certificate Programs Course Schedules

This calendar schedule of courses is intended to provide the reader a quick and easy glance of the classes being offered by AHTA approved certificate programs. Each listing includes the name of the program, contact information, dates and names of courses being offered. For more detailed information such as locations, times, registration process, etc., please use the contact information listed for each program.

Program & Contact Course Dates and Names

Horticultural Therapy Institute

Christine Capra
Program Manager
[email protected]

Enrollment for fall classes always open

H421: Horticultural Therapy Techniques

H423: Horticultural Therapy Programming

H425: Horticultural Therapy Management

Portland Community College

Jan Abushakrah, PhD., Academic Advisor
Gerontology Program Director
[email protected]

Melissa Bierman, MS, MHT, HTR
HT Course  & Internship Instructor            [email protected]


Summer 2019 - Spring 2020 Terms

These six courses have been reconfigured for completion in four terms, with two Friday evening/Saturday full-day class meetings each term, except for GRN272, which has three Saturday meetings. The 14 credits meet AHTA professional training requirements for HTR registration. All courses are taught as hybrids, with some required work conducted online and mandatory class meetings on the dates listed below. (Check PCC schedule for meeting times and locations).  


The courses are offered as a sequence. If you miss a course, you need to wait for the following series to rejoin the sequence. In some cases, based on prior education and experience, the instructor may allow a student to begin the sequence late.

Winter Term 2020 (must co-enroll in GRN270 & GRN271)

4. GRN270: Therapeutic Horticulture Programming (2 credits)
Online: Monday, Jan 7 – Thursday Feb 14 / Class meetings: Fri/Sat: Jan 24/25

5. GRN271: Therapeutic Horticulture Skills II (2 credits)
Online: Thursday, Feb 14 – Sunday, March 24 / Class meetings: Fri/Sat: March 8/9

Spring Term 2020

6. GRN272: Therapeutic Gardens (3 credits)
Online: Monday, March 30 – Sunday, June 14 / Class meetings: Sat: Apr 11, May 9, June 6

Temple University-Ambler

Peg Schofield, HTR
[email protected]


University of Florida

Elizabeth (Leah) Diehl, RLA, HTM
[email protected]  

Horticultural Therapy Program Management

Saturdays: 1/25/20 to 3/7/20




Spring semester: Techniques in Horticultural Therapy (PLS 4081) - prereq is PLS 3080) 

Fall semester: Intro to Horticultural Therapy (PLS 3080) and Program Management in Horticultural Therapy (PLS 4082) 

The Internship course & Independent Study course can be done any semester