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.

Join Us for the 2025 AHTA Virtual Conference!

Mark your calendar for the 2025 AHTA Virtual Conference—an inspiring gathering of professionals, students, and advocates in horticultural therapy and nature-based practices. This year, we are honored to welcome acclaimed author and visionary Richard Louv (Last Child in the Woods, Our Wild Calling) as our keynote speaker. Don’t miss this opportunity to connect, learn, and grow with a vibrant community dedicated to healing through nature. Stay tuned for dates, session details, and registration information!

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

Horticultural Therapist-Registered (HTR) Directory

We are proud to launch our new public search feature that allows companies or the general public to search for HTRs near them. The public search can simplify the process and make finding HTRs more accessible. Benefits may include: consult work for HTRs, job opportunities, being apart of communities, availability to present on horticultural therapy, and share on the profession!

Locate an HTR

AHTA Membership

Make a difference and help advance the profession of horticultural therapy by joining AHTA. Your membership will help support our mission to educate others about horticultural therapy, ensuring greater public awareness and access. Membership keeps you informed about the latest horticultural therapy news, gives you access to outstanding educational and networking opportunities, and more!

Join Today

Job Task Analysis 2022

AHTA completed the 2022 Job Task Analysis, meeting the standards of today’s profession of horticultural therapy.

View Analysis

Want to receive AHTA emails?

Sign up today to receive AHTA emails. If you are interested in becoming a member, being on our email list is a great way to learn more about the AHTA. We send important updates, like our monthly newsletter and more!

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Support AHTA

Your generous support makes it possible for our organization to grow and thrive. Your contributions will help keep us going, including helping with the expenses of our annual conference, increasing our ability to work toward credentialing, offsetting the cost of our journal and other outreach publications, and connecting to colleges and universities, facilities, prisons, hospitals, and agencies that support the profession of horticultural therapy.