2026 Conference Program- Friday

Saturday, October 17, 2026

10:30 am - 12:00 pm

Lana Dreyfuss, LPCC, SEP, HTR

Credentialing the Profession  Horticultural Therapy



“Credentialing the Profession of Horticultural Therapy” will introduce the Horticultural Therapist-Board Certified (HT-BC) credential. Launching Fall 2026, the HT-BC sets a new benchmark for clinical excellence, professional accountability, and industry credibility. This presentation will review these main points: What is certification, The difference between certification and certificates, Why certification matters, AHTAs history of resilience with certification, How AHTA is thriving today in the process of certification, The 6 domains of the exam, Who should get certified, Eligibility pathways and FAQ.



Hsiang-Hua (Melanie)Chen, MS, HTR, THTA

Elizabeth (Leah) Diehl, RLA, HTM

Phillip Lee Pak Phi

THAD Global: Using the Therapeutic Horticulture Activities Database to Support Culturally Responsive Programming


As therapeutic horticulture expands worldwide, practitioners require adaptable, culturally responsive resources that translate across diverse communities and environments. This workshop introduces the Therapeutic Horticulture Activities Database (THAD), a structured, evidence‑informed tool for designing nature‑based activities rooted in horticultural therapy principles. Presenters will highlight THAD’s international relevance through applications in the United States, Taiwan, and Singapore, followed by a hands‑on cultural adaptation exercise that equips participants to tailor activities for varied populations, traditions, and global practice settings.


Stephanie Ramirez, LCSW, THP

Soiled in Beauty: Tending the Inner Garden of Resilience


Step into an experiential blend of horticultural therapy and parts work to cultivate resilience. Through reflection, dialogue, and a hands-on art activity, participants will explore and tend their inner landscape.


Poster sessions are a visually engaging displays of programs, research, or best practices, designed to spark discussion and share concise, impactful information. Poster sessions will occur on Friday, October 16, 2026 between 1 PM - 5 PM PT at the Marriot Union Square.

Poster Session Contributors

Aisha Siddiqui, MPP

Alexa Rennie

Alison Brennan, PhD

Amanda Feneis, BA, HTR

Anne Meore, HTR, LMSWA

Ashley Thiel

Bianca van der Stoel, CHTR

Carmen Ketron, MS, MPA

Corynne Mahlstedt

Cynthia Domenghini, PhD

Deidre Schuetz, MA, LMT, HTS

Derrick Stowell, PhD, HTR, CTRS

Fatemeh Haghighi, PhD

Jeannie Gearin

Kenneth Powell-Wilson, QMHA-R, PWS

Kristine Kelley

Lisa Perrine, Ed.D.

Luis Gutierrez-Mock, PhD (c), MPH, MA

Sarah McCracken, Certificate of HT

Sarah Sorci, Certificate in HT

Shelagh Fritz

Srividya "Sri" Krishnan

Susan Rodiek, Ph.D., NCARB, EDAC

Tongyu Li, HTR, PhD

Tracey Wilson, RPq, MACP, ADMH

Register Now!

Join us at the AHTA Annual Conference for workshops, expert-led sessions, and experiential learning opportunities designed to equip you with the tangible tools necessary to strengthen resilience within your community and allied health profession.