Learn how to support people's health and wellbeing through therapeutic horticulture.
Our training is created and delivered by experienced practitioners. From practical demonstrations to interactive training modules and comprehensive information resources, we are here to support you. Designed to cater to different learning styles and levels of experience, we have a varied menu of courses and events to choose from. We provide CPL certificates to all participants in our Professional Seminars, Activity Demonstrations, Seasonal Gardening Activities and TH Essentials Training.
Explore our upcoming training & events
Is your TH project ready for referrals from health, care and social prescribing services?
Is your TH project ready for referrals from health, care and social prescribing services?
Join Fiona and Emma as they share their experience of using therapeutic horticulture (TH) to support health and wellbeing —...
The Long and Winding Road- A Look at Past Projects, Lessons Learned and Future Growth in Therapeutic Horticulture with Professor Matthew J. Wichrowski, NYC
The Long and Winding Road- A Look at Past Projects, Lessons Learned and Future Growth in Therapeutic Horticulture with Professor Matthew J. Wichrowski, NYC
Join Professor Matthew J. Wichrowski of NYU Langone Hospital Center, New York as he draws on over 30 years of...
Professional Development Forum - 27th October 2026
Professional Development Forum - 27th October 2026
Please join us on the 27th October using the link below: https://us06web.zoom.us/j/84525641989?pwd=0s2qd9bNJ5WQXCHtnFX5cAoMkaeE2… Passcode: 582147
Introduction to Therapeutic Horticulture 2026-27
Introduction to Therapeutic Horticulture 2026-27
Curious about Therapeutic Horticulture? Wondering what it involves, what it looks like in practice, where it takes place, and how...
Ready for Winter? Getting through the colder months with your TH group
Ready for Winter? Getting through the colder months with your TH group
Explore how to support your therapeutic horticulture (TH) group through the challenges of winter. From planning for staff absences and...
Core Characteristics of Therapeutic Horticulture Spaces 2026-27
Core Characteristics of Therapeutic Horticulture Spaces 2026-27
This Foundation Level session introduces the key practical and theoretical considerations involved in creating and using Therapeutic Horticulture (TH) spaces...
How Can Therapeutic Horticulture Support Mental Health? 2026-27
How Can Therapeutic Horticulture Support Mental Health? 2026-27
This Intermediate Level session explores how Therapeutic Horticulture can play a meaningful role in supporting mental health and recovery. Build...
Adaptive Gardening for Wellbeing 2026-27
Adaptive Gardening for Wellbeing 2026-27
Learn how adaptive gardening techniques can help you support your clients’ wellbeing. This foundation-level session introduces the key theories and...
Bespoke Training Sessions
Subject to funding and staff availability Trellis can offer exclusive training sessions for your staff and volunteer team from £695 , plus materials and travel costs.
This includes a day of training for up to twelve participants, covering topics such as:
-Therapeutic horticulture
-Practical gardening skills
-Adapting gardening activities to suit your group’s needs
-Health and safety considerations when gardening with groups
Training content can be tailored to your requirements—please contact us to discuss topics, options and availability.
Subject to funding and staff availability Trellis can offer exclusive training sessions for your staff and volunteer team from £695 , plus materials and travel costs.
This includes a day of training for up to twelve participants, covering topics such as:
-Therapeutic horticulture
-Practical gardening skills
-Adapting gardening activities to suit your group’s needs
-Health and safety considerations when gardening with groups
Training content can be tailored to your requirements—please contact us to discuss topics, options and availability.
Trellis Training
TH Essentials Training
This training programme offers a solid introduction to therapeutic horticulture for anyone running or developing garden‑based wellbeing activities. Through guided learning, practical examples and supportive discussion, you’ll explore how gardening can be used safely and effectively to support people’s health and wellbeing.
Professional Learning Seminars
Our Professional Learning Seminars offer meaningful CPD for therapeutic horticulture practitioners — all provided online so you can join from wherever you work. Each session explores real issues faced in day‑to‑day practice, sharing insights, approaches and peer experience you can apply in your project.
Seasonal Gardening Activities
The foundation level Seasonal Gardening Activities Training Programme is designed to boost your professional development with lots of practical gardening activities to engage clients and those in care settings, both indoors and out, throughout the year.
Activity Demonstration Library
Explore our collection of therapeutic horticulture activity demonstrations — short, practical videos showing how to run a wide range of garden‑based wellbeing activities. Each recording offers simple, accessible guidance to help you build confidence, learn new techniques and support participants safely and creatively in your project.
Seminar Video Library
Explore our growing collection of video recordings from the Trellis Seminar Series, World Therapeutic Horticulture Day events and learning sessions. This page brings together expert talks and inspiring stories from across the therapeutic horticulture sector.
Practitioner Qualification (PDA)
We are currently developing a Professional Development Award that we hope will be available in 2026, and is likely to be based on a day release model.
Trellis Events
Trellis Therapeutic Horticulture Conference
Our annual conference attracts over 100 delegates each year from across Scotland and the UK.
Our most recent Conference took place on 14 March 2025.
World Therapeutic Horticulture Day 2026
World Therapeutic Horticulture Day (WTHD) returns on 18 May 2026, inviting people across the globe to celebrate the life‑changing power of gardening for health and wellbeing — and to champion the growing recognition of therapeutic horticulture as a vital, evidence‑based practice. Founded by Trellis in 2023, this annual day has quickly become a vibrant international movement, uniting practitioners, gardeners, organisations, and anyone who has ever felt the benefit of Therapeutic Horticulture.
Whether you’re deeply rooted in the field or just beginning to explore it, you’re warmly welcomed to join in, helping to shine a light on this important profession and broaden access so everyone can benefit.
And getting involved is simple — use the free-to-download WTHD resources, share your stories, activities and garden moments on social media with #WTHD, spread the word in your community, and add your project or country to the global participation map to help grow recognition for therapeutic horticulture worldwide.
International Seminar Series
Our Seminar Series has been running for 5 years and have grown in size and reputation. The seminars are for anyone who is interested in therapeutic horticulture, for those already working in the field and anyone who is just diving into this wonderful world for the first time.
Learning & Networking Meet Ups
Throughout the year we arrange in-person networking seminars in various locations across Scotland. These events allow people from all areas of therapeutic horticulture to come together and share their experience and knowledge.
Trellis AGM
The Trellis AGM 2025 took place on 17th October 2025 online via Zoom.