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



Enrolling For the HTI Certificate Classes

Linking People and Plants

How to Enroll

Enrollment is easy. Mail-in or phone-in  your enrollment with a check, Visa or Master Card credit card information. Or enroll online through our secure Paypal online registration system. You do not need to have a paypal account to register online. Any credit card will be accepted. Click “other payment method”.

Payment must be made in full at the time of enrollment in order to hold a space in the class. Class size is limited, and classes fill quickly so early enrollment is advised. All students must enroll for each course in the series separately.

Secure online enrollment

Click to enroll online

Print Our Enrollment Form

Print the enrollment form from this website, or contact us to request a copy of the enrollment form and we will email you one.

Click to download enrollment form


Fill out an enrollment form and send with payment (no cash, please) to:
Horticultural Therapy Institute
P.O. Box 461189
Denver, Co. 80246


303-388-0500 and ask for Christine.
Have the course name and a credit card number handy.

Cancellation Policy

No cash refunds will be given. Students who are unable to attend a class will be given credit towards future classes through the HT Institute. A $150 processing and materials fee will be charged at the time of subsequent enrollment. Credit must be used within 12 months. If you cannot attend a course, notify us at 303-388-0500 as soon as possible as other students may be on a waiting list to attend the class. Class credits cannot be redeemed for cash.

The Horticultural Therapy Institute reserves the right to cancel a class if a minimum enrollment number is not met. In the event of cancellation, students will be notified by mail/phone two weeks prior to class.

Discrimination Policy

The Horticultural Therapy Institute does not discriminate on the basis of race, religion, gender or sexual orientation.


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

Read Here

Read the newest HTI blog

Read Here

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