
AHTA
The American Horticultural Therapy Association (AHTA) is the only U.S. organization committed to promoting and developing the practice of horticultural therapy as a unique and dynamic human services modality. a 501(c)(3) nonprofit, AHTA advocates on behalf of the professional interests of horticultural therapy practitioners and strives to increase beneficial outcomes for participants, researchers, host facilities, and educators.

Legacy Health
The Legacy Therapeutic Garden Program began in 1991. Legacy created and taught the AHTA approved core curriculum for 20-years begining in 1997. In 2017, Legacy passed the course series
teaching to PCC, since the students and coursework would benefit from having an academic home. Legacy continues to offer volunteer positions and internships in their award-winning 12-garden program.
Please see www.legacyhealth.org/gardens

Portland Community College
Portland Community College (PCC)'s HT Program prepares students for the Horticultural Therapist-Registered (HTR) designation with the American Horticultural Therapy Association, and provides students not yet meeting the AHTA HTR requirements the opportunity to develop the knowledge and skills to work as therapeutic horticulture activity specialists with diverse populations in a variety of settings.