Contact AHTA

AHTA is a professional organization and does not have any employees of its own. Our work is made possible by our volunteers and through administrative support provided by SBI Association Management. SBI serves many other local, national, and international nonprofit associations.

To contact AHTA, you can write, call, or send us an email. When you call the AHTA Office, any one of the SBI staff will be able to help you.

American Horticultural Therapy Association

Business Hours: Monday – Friday, 8:30 AM – 5:00 PM (Pacific Time)
Phone: 206-209-5296
Email: [email protected]
2150 N 107th St. Suite 205
Seattle, WA 98133

AHTA Contacts:

Stacey Williams, Association Executive
Ally McGuire, VEMM, Event Planner
Makenna Wallingford, Senior Marketing & Communications Coordinator
Sadie Countryman, 
Member Services Administrator