Welcome to the American Horticultural Therapy Association 

Established in 1973, the American Horticultural Therapy Association (AHTA) is the only national US organization advocating for the development of the horticultural therapy profession and the practice of horticulture as therapy for human well-being. AHTA supports the professional development, education, and expertise of horticultural therapy practitioners. Individuals and organizations located across the US and beyond are members. We are a 501(c)(3) nonprofit membership-driven organization with the mission to promote and advance the profession of horticultural therapy as a therapeutic and rehabilitative modality. 

Learn More about Horticultural Therapy and AHTA  

Therapeutic Horticulture Practitioner (THP) 

The American Horticultural Therapy Association is pleased to announce a new professional credential – The Therapeutic Horticulture Practitioner, THP.

AHTA is now accepting applications for this new credential. The THP is intended for practitioners who provide therapeutic horticulture services aligned with the AHTA definition:

• The engagement of a participant in active or passive horticultural-related activities.
• The participant has an identified disability, illness, or life circumstance requiring services.
• The activity is facilitated by a registered horticultural therapist or other professional with training in horticulture.
• The participation is in the context of the goals and mission of the organization.

Learn More & Apply