- The American Horticultural Therapy Association About Us About AHTA AHTA Chapters Join AHTA Publications Education Journal Submissions Research Professional Registration Annual Conference Greenhouse Grants Links Donations Contact Us 909 York Street Denver, CO 80206 Phone: 303-370-8087 Fax: 303-331-5776 Email: ahtaoffice@earthlink.net ...www.ahta.org
- Way to Grow, Inc. is a non-profit membership organization dedicated to promoting and encouraging national and international interest in horticultural therapy.www.horticulturaltherapy.org