Past Grant Recipient’s Projects

J. Arthur Trudeau Center planting project awarded to Sally Gruber, HTR

Seven Hills ASPIRE awarded to Gail Hamm

Featured Links

American Horticultural Therapy Association

The American Horticultural Therapy Association is the only US organization committed to promoting and developing the practice of horticultural therapy as a unique and dynamic human service modality. The association advocates on behalf of the professional interests of horticultural therapy practitioners and strives to increase beneficial outcomes for participants, host facilities, researchers, and educators. AHTA defines and encourages the pursuit of  outstanding standards of practice, disseminates critical knowledge across diverse constituent audiences, and recognizes and promotes excellence in clinical, professional, educational, and research achievement.

For more information go to, email [email protected]

Horticultural Therapy Institute

At the non-profit Horticultural Therapy Institute, students gain the skills and confidence to create and manage successful horticultural therapy programs, and are inspired to become leaders in the practice and profession of horticultural therapy. Our experienced instructors are dedicated to teaching best practices with passion and excellence, keeping an eye on the changing needs of programs, people and places.

We offer:

  • Professional training that prepares you to combine your passion for gardening with a desire to improve the lives of others
  • A certificate in horticultural therapy (HT)
  • Courses in HT for adult and traditional students
  • Experienced instructors who love to teach and are leaders in the profession
  • Staff who care about and can help guide your career
  • Face-to-face instruction that builds your professional network
  • College credit from Colorado State University
  • A concentrated course of study that can lead towards a credential in HT from the American Horticultural Therapy Association
  • A discourse with others who recognize the benefits of connecting people and plants
  • A curriculum that effectively trains students from varied educational and professional backgrounds

Leaders in Horticultural Therapy Education

Learn how to combine a passion for gardening with professional human service through the innovative field of horticultural therapy. Join students from across the country to learn more by enrolling in Fundamentals of Horticultural Therapy this fall in one of three locations.

At the non-profit, Horticultural Therapy Institute (HTI), our mission is to provide education and training in HT to those new to, or experienced with, the practice of using gardening and plants to improve the lives of others. For the past 15 years, our faculty has been dedicated to teaching best practices with passion, and our past students form a community of learners that become horticultural therapy practitioners in a variety of settings. Our graduates work in hospitals, schools, mental health facilities, nursing homes, hospices, public gardens, rehabilitation/recovery facilities, prisons and vocational training centers. HTI prepares students to address the needs of those served in horticultural therapy programs and adapt garden tasks to the abilities of everyone.  Take one class, or the full certificate program, and see how our curriculum can meet your needs. With its unique format, you don’t need to live where the classes are held.Classes are offered in a four-day intensive, interactive format to accommodate those who must travel to attend.

Class cost is $800 ($650 for full-time college students with proof of student status). The remaining three certificate classes will be held in Colorado and North Carolina and to complete a full certificate in HT plan to attend those additional classes. Students can earn college credit from Colorado State University to meet the American Horticultural Therapy Association (AHTA) professional standards.

Click here for more info on classes

For more information go to, email [email protected] or call 303-388-0500.