Regional Groups
Regional Groups
Growing Community, Growing the Profession
Regional horticultural therapy groups are independent, locally led entities that play a vital role in strengthening the field. While the American Horticultural Therapy Association serves as the professional standards body for horticultural therapy, regional groups focus on connecting everyone doing HT in their area — practitioners, students, allied professionals, and supporters alike. These groups host educational events, create networking opportunities, share resources, mentor emerging professionals, and advocate for horticultural therapy within their communities. AHTA encourages and supports their work and looks forward to seeing regional groups continue to flourish and proliferate across the country.
Regional groups are an ideal complement to your AHTA membership. Connecting with other horticultural therapy professionals in your area enables you to exchange ideas, participate in group events, and build meaningful professional relationships close to home. Regional horticultural therapy groups are doing excellent work for their members and their regions.
Please contact the regional horticultural therapy groups in the following areas to learn more, and be sure to check their websites for upcoming events near you. Their events may also be featured on AHTA’s Events page.

Regional Horticultural Therapy Networking Groups Guidelines and Criteria:
Regional Horticultural Therapy Networking Groups are defined as groups that support the mission of the American Horticultural Therapy Association (AHTA).
- Networking groups are independent groups. There is no legal/business link with the AHTA.
- The AHTA does not oversee, monitor, nor manage the membership of the networking groups.
- The AHTA will list the networking group and contact information on the AHTA website.
- Networking groups that do not have a designated nonprofit status will be identified by their region or state.
- The designated group contact is required to be a professional member of the AHTA.
- The AHTA will post networking events on the AHTA Calendar of Events and share information through the AHTA social media platforms.
- Networking groups may not use the AHTA logo or name without prior permission.
Carolinas Horticultural Therapy Network
NC, SC, and TN
Contact:
Greg Stivland
Rocky Mountain Horticultural Therapy Network
CO, ID, MT, NM, UT, WY
Contact: Erica Wharton
California Horticultural Therapy Network
CA
Contacts: North: Trish Hildinger and South:
Silvia Yoshimizu-Yee
Florida Horticulture for Health Network
FL
Contact: Lesley Fleming
Michigan Horticultural Therapy Association
MI, OH, IN, WI, MN, IL
Contact: Angie Girdham
Mid-Atlantic Horticultural Therapy Network (MAHTN)
NJ, NY, PA
Contact: Gerry Sherman
Northeast Horticultural Therapy Network
CT, MA, ME, NH, NY, RI, VT
Contact:
Irene Brady Barber
Northwest Therapeutic Horticulture Networking Group (NWTH)
ID, MT, OR, WA
Contact:
nwtherapeutichorticulture@gmail.com
Regional Events
To find upcoming horticultural therapy activities in your area, please be sure to visit our Event Calendar.








