The new major textbook for Horticultural Therapy is now available purchase here.

Fundamentals of HT

2021 Fall classes

The HT Institute hopes to offer two face-to-face and one online Fundamentals class in the fall of 2021. The schedule is  dependent upon the availability of class space and status of the pandemic. With this in mind the following are tentative dates:

Oct. 21-24, 2021
Denver, Colorado or online

Nov. 21-24, 2021
Atlanta, Georgia or online

Dec. 2-5, 2021
San Diego, CA or online

Download PDF of current 2020/2021 Schedules

Section I (CO) & II (CA)  Class schedules



What our students say about the HTI Certificate program

Linking People and Plants

“I always appreciate how encouraging the Institute has been. I have been to many training’s, classes, conferences and continuing education courses. I rank these courses as the most influencing on me as a professional. Thanks you!”

Katie Davis,
Speech Language Pathologist
Abilene, TX

“Doing the certificate program was a valuable experience. I could really appreciate how much time, thought, care went into your planning/development and implementation of each course.”

Sarah Sieradzki,
Occupational Therapist, Ohio

“This class was most valuable to me (Horticultural Therapy Management) because it helped me to put all of the pieces together in a way that gives me great confidence to start my own program.”

Nicole Norlin-Giron,
Adaptive Therapy Specialist,
Therapeutic Recreation, Nebraska

“My overall impression was that all of the classes were wonderful. It was a valuable opportunity to meet classmates and share their different ideas for the future.”

Yoko Horiuchi,
Business and Marketing, Japan

“The content of the HTI program and the connections made with classmates from varied backgrounds are key to my education as a developing HT.”

Christene Tashjian,
Assistant Director of a
non-profit, North Carolina

“Thank you for your professionalism and passion in HT. The HT
classes in Denver brought clarity to the project which I’m currently
working on.”

Reese Nelson,
Professor, Idaho

“I’m so excited about our last class, and sad at the same time…this has been the most wonderful and most meaningful experience of my life.”

Pattie Bell,
Therapeutic Recreation in
mental health, Georgia

“I found so much useful about this class. I learned about all aspects of HT through guest speakers, HT projects, videos, readings/articles and learned from others in the class. It was informative, inspiring and interesting.”

Rosy Ward,
Environmental Educator, New Mexico

“I appreciated how the homework and reading tied together. The instructor, Rebecca Haller is the consummate professional. She was
very patient with a wide range of ‘intro’ questions.”

Kathy Jones,
retired, Arizona

“I enjoyed visiting with program directors and getting an inside look at the actual working process of different programs. The guest speakers were truly committed to each of their projects. They gave me inspiration to go back home and start up a program.”

Amy Nossaman,
Extension Director, Iowa

“Rebecca Haller was wonderful. I enjoyed her relaxed, yet professional teaching style. She has a wonderful sense of humor and is very approachable. I’m really looking forward to taking the other courses in the HTI certificate series.”

Tracy Halward,
HT consultant, Colorado


View the recording of a recent live webinar:

Topic: Entering the Profession of Horticultural Therapy

You will learn:

  • What is horticultural therapy?
  • Where is it practiced?
  • Who does it serve?
  • How can you receive training?

View the webinar here


Read the Fall newsletter

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Read the newest HTI blog

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