Professional Learning Seminars

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orange flower

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. With space to learn, reflect and connect with colleagues across the Trellis network, these online seminars support you to strengthen your practice, build confidence and continue developing your professional skills.

Professional Learning Seminars

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group in summer garden

Is your TH project ready for referrals from health, care and social prescribing services?

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Join Fiona and Emma as they share their experience of using therapeutic horticulture (TH) to support health and wellbeing —...

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TH man and two women gardening at a table outdoors

The Long and Winding Road- A Look at Past Projects, Lessons Learned and Future Growth in Therapeutic Horticulture with Professor Matthew J. Wichrowski, NYC

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Join Professor Matthew J. Wichrowski of NYU Langone Hospital Center, New York as he draws on over 30 years of...

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winter frost on veg garden and shrubs

Ready for Winter? Getting through the colder months with your TH group

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Explore how to support your therapeutic horticulture (TH) group through the challenges of winter. From planning for staff absences and...

Professional Learning Seminars Archive

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Group of men gardening around a raised bed in sunshine

Planning Weekly TH Topics & Recording Wellbeing in Gardening Sessions

Held 17 Jun 2026

Planning Weekly TH Topics & Recording Wellbeing in Gardening Sessions with Emma Martindale and Jenny Simpson, Trellis Members - FREE...

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horticultural-therapy-methods

Growing the Practice: The Evolution of the foremost textbook in the field, Horticultural Therapy Methods with Rebecca L. Haller, Horticultural Therapy Institute, Colorado.

Held 4 Nov 2025

Price: Non-members - £10 Members - FREE Please join us for this very special event. If therapeutic horticulture has a...

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potting up houseplants using compost, posts and a potting tray

Scottish STH Practitioners supporting those with Mental Health Difficulties

Held 14 May 2025

Suzanne Fox shares the findings of her MSc Research on The Experience of Social and Therapeutic Horticulture Practitioners Working to...

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Alison Marsden Seminar

Why, What and How to measure the benefits of STH

Held 13 May 2025

Alison Marsden will share her MSc research on outcome measurement in Social and Therapeutic Horticulture. Why, What and How to...

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tall green foliage flowers in foreground, polytunnel visible in background

Growth and Recovery from Sexual Violence Through Gardening and Craft

Held 13 May 2025

Autumn Roesch-Marsh, University of Edinburgh: Emma Martindale, Trellis and Lara Armitage, Birkhill House share the research findings from a study...

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Growing Recovery – The story of enthusiastic volunteers, a large polytunnel and courgette cake!

Growing Recovery: The story of enthusiastic volunteers, a large poly tunnel and courgette cake!

Held 11 Mar 2022

Alcohol and Drugs Action (ADA) Recovery Garden Project is a gardening based therapeutic group led by volunteers for people in...

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A Year in the Therapy Garden Badenoch & Strathspey, Highland Scotland

A Year in the Therapy Garden: Badenoch & Strathspey, Highland Scotland

Held 11 Mar 2022

Hear about our varied work providing social and therapeutic horticultural activities at our Growing Spaces within a local allotment; Medical...

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mindfulness_in_nature

Mindfulness in Nature

Held 10 Mar 2022

Mindfulness can enhance wellbeing and lift mood. In this interactive seminar, learn how to use 'Making a Mandala' as a...

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In Flanders Fields tales of gardening in Flanders, in prisons and other settings

In Flanders Fields: tales of gardening in Flanders, in prisons and other settings

Held 10 Mar 2022

Find out more about therapeutic gardening practice in Belgium. Including a prison in Leuwen and PXL university who are partners...

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HT Across the Continents Approaches to improving the human condition

HT Across the Continents: Approaches to improving the human condition - A Study from Northern Iraq

Held 9 Mar 2022

The intercontinental team will present, in three perspectives, their collaborative work to help support a therapeutic gardening programme in Chamchamal...

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Therapeutic Horticulture and the Healing Benefits of Nature from Down Under

Therapeutic Horticulture and the Healing Benefits of Nature from Down Under

Held 9 Mar 2022

Therapeutic Horticulture is building momentum in Australia. Join Tara Graham-Cochrane, Therapeutic Horticulture Australia (THA) President, Amy Baker, researcher and lecturer...

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Research on horticulture therapy – experience from the living lab Alnarp Rehabilitation garden, Sweden

Research on horticulture therapy – experience from the living lab Alnarp Rehabilitation garden, Sweden

Held 8 Mar 2022

Gardening in Sweden - research and practice. Research on horticulture therapy – experience from the living lab Alnarp Rehabilitation garden...

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Nature is essential for our lives growing vegetables and flowers with people affected by addiction in Sao Paulo State, Brazil.

Nature is essential for our lives: growing vegetables and flowers with people affected by addiction in Sao Paulo State, Brazil.

Held 8 Mar 2022

Mirela will reflect on how she developed the gardening project in a therapeutic community in a neighbouring town, what the...

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Gardening with the Grand Duchess of Tuscany A tale of how therapeutic horticulture is beginning to flourish in Italy

Gardening with the Grand Duchess of Tuscany: A tale of how therapeutic horticulture is beginning to flourish in Italy

Held 8 Mar 2022

The Villa Granduchessa, built in 1400 in a park on a hill overlooking Florence, has belonged to many noble families...

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Herb Bath Bags & Wildflower Meadows

Herbal Bath Bags & Wildflower Meadows

Held 8 Mar 2022

Embrace Spring with Emma & Joan's garden inspired crafts! Make herbal bath bags for a relaxing, fragrant soak in the...

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Building Community

Building Community

Held 7 Mar 2022

Alan will tell us about Murrayburn & Hailesland Neighbourhood Garden, Edinburgh - how it came into being and what takes...

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Assistive Technology Structures in the Horticultural Therapy Garden and its Impacts

Assistive Technology Structures in the Horticultural Therapy Garden and its Impacts

Held 7 Mar 2022

Dr Beela G.K. will tell us about her work developing horticulture therapy programmes with children with autism and other physical...

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Understanding Horticulture for Health and Well-being - Buidling on Research

Understanding Horticulture for Health and Well-being - Building on Research

Held 12 Mar 2021

Research on the role of horticulture in human wellbeing is mounting up, year after year. Practitioners can use this evidence-base...

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Insights and Techniques Developing a Therapy Garden

Insights and Techniques: Developing a Therapy Garden

Held 12 Mar 2021

Natalie McCall discusses developing a therapy garden informed by psychiatrist Judith Herman's work on trauma and recovery. Click here to...

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Horticulture and Therapy in the United States

Horticulture and Therapy in the United States

Held 11 Mar 2021

This session will focus on results from a study of Horticultural Therapy practitioners on the current challenges and opportunities for...

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Important Social Spaces

Important Social Spaces

Held 11 Mar 2021

Girvan Community Garden ( www.girvancommunitygarden.com) is situated within a former walled garden found at the bottom of a narrow winding...

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Healing Garden at an orphanage in Lima

Healing Garden at an orphanage in Lima

Held 10 Mar 2021

In April 2019 a Healing Garden was implemented at an orphanage in Lima, Peru and on 2 May the horticultural...

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Potatoes a journey through time and around the globe

Potatoes: a journey through time and around the globe

Held 10 Mar 2021

John Marshall certainly knows his spuds! Join John to learn about potato cultivation in Scotland and across the world from...

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Therapeutic gardening has been making small headways in France

Therapeutic gardening: where does France stand?

Held 9 Mar 2021

Therapeutic gardening has been making small headways in France for several years. In 2018, a group of diverse practitioners founded...

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Printing with Plants Using Gel Plates

Printing with Plants : Using Gel Plates

Held 9 Mar 2021

Join Ruth Nay of Forfar Open Gardens, who will demonstrate how to use plants to make beautiful artisitic prints using...

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Social and Therapeutic Horticulture in Spain

Social and Therapeutic Horticulture in Spain

Held 9 Mar 2021

Leila Alcalde is a passionate horticulture therapist.In recent years, the interest in nature-based therapies in Spain has slowly increased Click...

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Project in a poke

Project in a 'Poke'

Held 8 Mar 2021

A demonstration of three table-top gardening activities which lend themselves to live demo sessions or being shared as postal projects...

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Horatio's Gardens, improving the lives of those affected by spinal injury

Horatio's Gardens, improving the lives of those affected by spinal injury

Held 8 Mar 2021

The Scottish National Spinal Injuries Unit, Queen Elizabeth University Hospital in Glasgow cares for patients with spinal injury. Join Sallie...

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Therapeutic Horticulture Movement In Singapore

Therapeutic Horticulture Movement In Singapore

Held 8 Mar 2021

Understand the journey of introducing therapeutic horticulture in urbanised city like Singapore, the research on therapeutic horticulture and growing the...