Journal of Therapeutic Horticulture

Horticultural Therapy Research Available to All

In 2024, AHTA made the Journal of Therapeutic Horticulture available for free.

AHTA believes research and scholarship is vital to the field of horticultural therapy.

Check Out the Latest Journal

The latest edition is full of thoughtful, informative articles written by horticultural therapy's leaders, researchers, and practitioners.

Submit Your Article to The Journal of Therapeutic Horticulture

  • The journal encourages submissions for publication. Articles are submitted via Scholastica.
  • A review board made up of horticultural therapy professionals adjudicates the submitted articles and will reach out if edits or clarifications are necessary.
  • Review the author guidelines before you submit.

Journals from the 2020's


Journal of Therapeutic Horticulture 34.1 - 2024

This issue presents research, reflection, and practice insights examining therapeutic horticulture across healthcare, mental health, and community contexts, highlighting evidence, theory, and applied tools supporting well-being and professional practice advancement


Journal of Therapeutic Horticulture 33.1 - 2023

Potential contribution of HT on fall prevention as we age. A survey of hospital-based horticulture focusing on nutrition and community gardens, an exploration of HT work and sense of taste.


Journal of Therapeutic Horticulture 32.1 - 2022

Therapeutic effects of cultivating bonsai, self-regulation, intersection with HT work, horticultural-based interventions for female survivors of human trafficking, soil-less activities for transplant patients, case study on individuals coping with aging/disability.


Journal of Therapeutic Horticulture 31.1 - 2021

Volume 31 covers how gardening predicts ecospirituality, then explores vocational training for migrants and nature-based therapy for veterans. It finishes with a design concept for a healing garden in Iceland.


Journal of Therapeutic Horticulture 30.1 - 2020

Covers green exercise in a corporate environment, how gardens provide positive experiences for refugees, surveys Nova Scotia’s Horticulture for Health activities and ends with nature activity recommendations for older adults.


Journals from the 2010's


Journal of Therapeutic Horticulture 29.2 - 2019

Volume 29 covers the quality of life for dialysis patients, and gardening’s effects on mental health and finishes with an article on developing HT protocols.


Journal of Therapeutic Horticulture 29.1 - 2019

Volume 29 covers quality of life for dialysis patients, gardening’s effects on mental health and finishes with an article on developing HT protocols.


Journal of Therapeutic Horticulture 28.2 - 2018

Volume 28 covers research on horticultural well-being of elderly folks in Singapore, then looks at characteristics of urban food gardeners, and finishes with HT interventions for offenders.


Journal of Therapeutic Horticulture 28.1 - 2018

Volume 28 covers research on horticultural well-being of elderly folks in Singapore, then looks at characteristics of urban food gardeners, and finishes with HT interventions for offenders.


Journal of Therapeutic Horticulture 27.2 - 2017

HT for substance use disorder, older adults’ experiences in urban park forest, laughter therapy and HT, raising awareness of HT in New Jersey, professional development, CEU considerations in HT.



Journal of Therapeutic Horticulture 27.1 - 2017

HT for substance use disorder, older adults’ experiences in urban park forest, laughter therapy and HT, raising awareness of HT in New Jersey, professional development, CEU considerations in HT.



Journal of Therapeutic Horticulture 26.1 - 2016

HT to benefit mental health in locked psychiatric unit, two case studies, examination of incorporating HT work into social work practice. Book review of nature and arts in therapy.


Journal of Therapeutic Horticulture 25.2 - 2015

Covers school gardening activities on visual motor integration, utilizing plant cart to deliver HT services, how HT improves body, mind, and spirit, and a book review of cut flower cultivation.


Journal of Therapeutic Horticulture 25.1 - 2015

Volume 25 (1) covers a review of HT and cancer care, botanical arranging, veterans to farmers programs, and book review of HT work with veterans having PTSD.


Journal of Therapeutic Horticulture 24.1 - 2014

Volume 24 covers green exercise with autistic children, and a look at the effect of window views on college students.


Journal of Therapeutic Horticulture 23.2 - 2013

Covers effects of HT activities on elderly individuals’ cognitive performance, the virtues of gardening, conference abstracts from AHTA’s 40th anniversary celebration, and a book review concerning design in dementia care.


 Journal of Therapeutic Horticulture 23.1 - 2013

Volume 23(1) covers research looking at the effects of landscape and garden views, work in an acute care setting, and the Portland Memory Garden.


Journal of Therapeutic Horticulture 22.2 - 2012

Volume 22(2) covers the therapeutic environment in crisis shelters, design recommendations for healthcare facilities, and therapeutic use of self.


Journal of Therapeutic Horticulture 22.1 - 2012

Volume 22(1) covers perceptions of HT work on rehabilitation, visual preferences in a Japanese garden and HT work with children on the autism spectrum.


Journal of Therapeutic Horticulture 21.2 - 2011

Gardening and parent involvement in elementary schools, relationship between gardening and depression among individuals with disabilities, and creating therapeutic gardens for maternity care patients.


Journal of Therapeutic Horticulture 21.1 - 2011

Gardening project for Juvenile Offenders, use of HT in treatment of PTSD in private practice, neuro critical care unit garden and grandparent gardening gifts.


Journal of Therapeutic Horticulture 20 - 2010

Volume 20 covers garden design in veterans centers, development of a healing garden in Denmark, a study of HT training practices and HT work in botanical gardens.


Journals from the 2000's

Journal of Therapeutic Horticulture 19 - 2009


  • Integrating Horticulture into the Vocational Rehabilitation Process of Individuals with Fatigue, Chronic Fatigue, and Burnout: A Theoretical Model; Patrick Millet, Ph.D.
  • Survey of Horticultural Therapy Programs in Tennessee; Jenny C. Pfeffer, Dennis E. Deytonand J. Mark Fly
  • It’s More Than Seeing Green: Exploring the Senses through Gardening; Amy Wagenfeld, PhD, OTR/L, MG, HTR, CAPS
  • A New Model for Horticultural Therapy Documentation in a Clinical Setting; Nancy Chambers, HTR
  • A Theoretical Perspective for Using Horticultural Therapy with Children; Charles E. Majuri, Ph.D; (no abstract)


Journal of Therapeutic Horticulture 18 - 2007-2008


  • Effect of Horticultural Therapy on Preventing the Decline of Mental Abilities of Patients with Alzheimer’s Type Dementia; Sonia J. D’Andrea, HTR, MSEd, CTRS, Mitchell Batavia, PhD, PT and Nicole Sasson, MD
  • The Psychosocial Benefits of Exposure to Natural Settings in Long-term Care: An Evaluation of the Wellness Garden Program at Glacier Hills Retirement Community; Suzanne Perry Slavens, MS, MPH
  • The Use of Therapeutic Horticulture in Cancer Support; Sheila B. Taft, HTR
  • Affordances of Ward and Garden in the Restorative Process of Hospitalized Children; Ismail Said and Mohd Sarofil Abu Bakar
  • Development of Assessment Standards and a Computerized Assessment Tool for Use in Prevocational Horticulture Training Programs for Head-Injured Individuals; P. N. Williams, C. Kissel Bales, T. M. Waliczek and J. M. Zajicek


Journal of Therapeutic Horticulture 17 - 2006


  • Volunteer Rutgers Master Gardeners Promote the Growth of Horticultural Therapy in their Community; Madeline Flahive DiNardo and Katherine Sabatino
  • The Importance of Community Gardening for Homeless Women: A Pilot Study; Cathy A. Pierce and Linda M. Seals
  • Heritage Alzheimer’s Garden: A Post-Occupancy Assessment; Emily Diehl Schlenker, PsyD, RN, CHN, RMT
  • Skills and Theories to Inform Horticultural Therapy Practice; Matthew J. Wichrowski MSW, HTR
  • An Empirical Approach to Feng Shui in Terms of Psychological Well-being; Ke-Tsung Han, Ph.D.
  • Therapeutic Gardening with Physical Rehabilitation Patients; Brenda Lantz


Journal of Therapeutic Horticulture 16 - 2005


  • The Potential on the Doorstep: The Importance of Gardens in the Psychological Well-being of Older People; Sue Jackson
  • Bio-monitoring Human Heart Rate and Caloric Expenditure Responses to Horticultural Activity; Mitsukimi Sugimoto, Hyejin Cho, and Richard H. Mattson
  • An Exploration of the Meaning and Effects of Horticultural Therapy on Human Health and Well-Being; Debra L. Fetherman, Alan Levine, Stephen Burke and Mary Alice Golden
  • A Horticultural Therapy Probation Program: Community Supervised Offenders; Bill Hale, Gary Marlowe, Richard H. Mattson, Ph.D., Jimmy Don Nicholson and C.A. Dempsey, Ed.D.; (No abstract)


Journal of Therapeutic Horticulture 15 - 2004


  • Horticultural Therapy for Institutionalized Older Adults and Persons with Alzheimer’s Disease and Other Dementias: A Study and Practice; Caryl Gormly Gurski, MS, OTR
  • Horticultural Therapy in a Mental Health Day Program; Janet Szofran, BSN, HTR & Susan Meyer, DSN
  • Horticultural Therapy in a Classroom for Learning Disabled Children; Bella S. Schimmel, M.D., Ph.D., HTR
  • Factors Affecting Choice of Horticultural Therapy at the Rusk Institute of Rehabilitation Medicine; Bracha Orr, Richard Mattson, Ph.D., Nancy Chambers, and Matthew Wichrowski
  • Therapeutic Horticulture for People Living with Cancer: The Healing Gardens Program at Cancer Lifeline in Seattle; Sheila B. Taft, HTR


Journal of Therapeutic Horticulture 14 - 2003


  • Horticultural Therapy for Persons with Dementia: Utilizing an Environmental Press Perspective to Integrate Theory and Research; Christina M. Gigliotti, M.S., Shannon Jarrott, Ph.D., and Diane Relf, Ph.D.
  • Physiological and Emotional Influence of Cut Flower Arrangements and Lavender Fragrance on University Students; Mingwang Liu, Ph.D., Eunhee Kim, Ph.D. and Richard H. Mattson, Ph.D.
  • Nurse-client Collaboration in Designing an Outdoor Healing Space; Emily Diehl Sclenker, PsyD, RN, CHN
  • Horticultural Therapy for Patients with Eating Disorders at the Homewood Health Center;Sharon Stewart, RN
  • Experiencing a Garden: A Healing Garden for People Suffering from Burnout Diseases; Ulrika A. Stigsdotter and Patrik Grahn
  • An Analysis of Registered Horticultural Therapists; Candice A. Shoemaker, Ph.D.
  • Horticultural Therapy and Infection Control in the Healthcare Environment; Nancy Chambers, HTR


Journal of Therapeutic Horticulture 13 - 2002


  • Stress Recovery Effects of Viewing Red-Flowering Geraniums; Eunhee Kim, Ph.D. and Richard H. Mattson, Ph.D.
  • Influence of an Outdoor Garden on Mood and Stress in Older Persons; Susan Rodiek
  • The Importance of School Gardening for Urban Children: A Case Study in Milan, Italy; Manuela Baietto and Francesco Ferrini
  • Gardening as a Treatment Modality in an Acute Psychiatric Center; Lynn Bortz, OTR and Mira Cal, MOT
  • First Jobs in the Green Industry; Joel Flagler, HTR
  • Social and Therapeutic Horticulture in the United Kingdom; David Foster
  • Application of a Client-Centered Horticultural Therapy Approach in a Behavioral Setting; Linda Salomon
  • Horticultural Therapy and Bartimeus Education: Recent Developments in the Netherland; Hans Schuman
  • What Makes a Garden a Healing Garden?; Ulrika A. Stogsdptter and Patrik Grahn
  • A Universally Designed Garden for New Horticultural Therapy Education in Japan; Fusayo Asano and Yoshisuke Miyake
  • The Profession of Horticultural Therapy Programs Compared with other Allied Therapies; Candice A. Shoemaker, Ph.D.
  • Proposing Horticultural Therapy Programs in Residential or Day Treatment Facilities; Charles E. Majuri Ph.D.


Journal of Therapeutic Horticulture 12 - 2001


  • A Horticultural Therapy Program for Brain Injury Patients with Neurobehavioral Disorders; Gregory J. Murrey, Ann Wedel and Jeff Dirks
  • Effectiveness of Horticultural Therapy Activities in a Psychiatric Hospital; Karen Denise Sellers
  • The Basic Instruction in Gardening Skills Program: Horticultural Therapy and Adult Special Education; David Greig
  • A Review: Theories of Restorative Environments; Ke-Tsung Han, Ph.D.
  • Horticultural Therapy and Post Traumatic Stress Recovery; Mitchell Hewson, HTM
  • Books of Interest for Horticultural Therapy; Laurel Haycock, Ph.D.


Journal of Therapeutic Horticulture 11 - 2000


  • Benefits of Gardening: An Exploratory Study of the Mid-Aged Women in New Zealand; Judith L. Kidd, M.S.W., Mag, Nancy A. Pachana, Ph.D., and Fiona M. Alpass, Ph.D.
  • Treatment of the Sexually Violent Predator: A Horticultural Approach; Robert B. Gibson and Michael P. Hughes
  • Perspectives on Intergenerational Horticultural Therapy; Mary Predny and Paula Diane Relf
  • Introduction and Development of Horticultural Therapy in Japan; Eisuke Matsuo, Hiroyuki Takafuji, and Hideki Hirano
  • Cultivating Life Skills: Prairie Treasures Vocational Horticulture Workshop; Karen Denise Sellers
  • Adapting an Existing Greenhouse for Accessibility by an Older Adult Population with Developmental Disabilities; Devah Brinker, M.S., HTR
  • Exploring Accessibility: A Hands-on Teaching Tool; Paula Diane Relf and Mary Predny

Journals from the 1990's

Journal of Therapeutic Horticulture 10 - 1999


  • Healing Grief Through Horticultural Therapy; Laura A. Cinq Mars, John Tristan, MS, HTR, and Rob Zucker, MA, LCSW
  • The Role of Horticulture in Human Well-being and Quality of Life; Paula Diane Relf, Ph.D.
  • Client Panel Discussion: Legacy Health System; Panel Facilitators: Teresia Hazen, M.Ed, HTR, QMHP and Cari Bennett, MSW, LCSW
  • Importance of Multiple Outdoor Activities for Persons with Developmental Disabilities; Iwao Uehara, Ph.D. and Seigo Itoh, Ph.D.
  • Intergenerational Horticulture Therapy Research Variables Introduced By Staff, Volunteers, and Video; Mary Predny and Paula Diane Relf, Ph.D. 
  • Design and Implementation of Horticultural Therapy with Children Affected by Homelessness and Domestic Violence; Johanna Keeley, M.Ed and Leigh Anne Starling, HTR
  • Therapeutic Garden Design in Residential Care for Older Adults including Those with Dementia and Physical Frailties; Suzanne Gray, HTR
  • In Search of the Source: Designing a Neighborhood Wellness Garden; Mary Bedard, BSLA


Journal of Therapeutic Horticulture 9 - 1998


  • Horticultural Therapy at Fairhaven School; Christine Wotowiec
  • Horticultural Therapy in a Therapeutic Farm Community; Cathy Clopton, BS
  • From a Few Plants to Thousands; Betsy Frazer, BS
  • Grief Gardening; Elan Marie Miavitz, BS
  • Psychiatric Case Studies; Patricia Sporn, MA, Bernice Salamon, HTT, Katherine Stirtz, BS, and Kathleen Neer, HTR
  • Physical Disability Case Studies; Kelly Jane Conrad, HTR, Teresia Hazen, HTR, MEd, QMHP, Karin Fleming, HTR, Denise Odell Alford, BS, OTR, Maxine Jewel Kaplan, MA, HTM, Janet Szofran, BS, HTR, and Maria Gabaldo, MEd, HTR, OTR
  • Geriatric Case Studies; Alee Karpf, MS, HTR, and Jennifer Fishman, CTRS, HTT
  • Palliative Care Case Studies; Charles A. Sourby, MSEd
  • Business Plan Development: A Horticultural Therapy Consulting Service; Laurie W. DeMarco, PhD, and Diane Relf, PhD, HTM
  • Enabling the Japanese Garden; Elizabeth R. Messer, MLA, HTM
  • Achieving Spirtual Balance within the Spatial Landscapes of a Healing Garden; Virginia T. Burt, BLA
  • Effect of Landscape on Psychological and Physical Responses; Chun-Yen Chang, PhD, and Jia-Lin Perng
  • Effects of Interior Plants on Social Behaviors and Psychological Disorders of Psychiatric Patients in a Hospital Ward; Sung-Hye Chung and Woo-Kyun Sim
  • A Survey of Pennsylvania Long-Term Care Facilities: Challenges and Incentives to the Application of Horticultural Therapy in Geriatrics; Johanna G. Leos, MAg


Journal of Therapeutic Horticulture 8 - 1996


  • Design Considerations for the Development of Therapeutic Gardens; David Kamp, ASLA
  • Designing for Emotional Restoration: Understanding Environmental Cues; Marni Barnes, MLA, LCSW
  • The Garden as a Restorative Environment: A Theoretical Perspective; Gowri Betrabet
  • Guidelines for Designing Healing Gardens; Mara Eckerling, JD
  • The Primary Colors of Nature: The Essentials of Therapeutic Landscapes; Elizabeth R. Messer, MLA
  • Stress Management through Garden Design; Virginia McGrath Salamy, RN, MLA
  • Growing Citizens: The Role of Gardens in a Women’s Prison; Weeks Ringle, ASLA
  • The Paradise Garden: A Model for Designing for those with Dementia and Alzheimer's Disease; Margarette E. Beckwith, ASLA, and Susan D. Gilster, RN, BGS, NHA
  • The Walter and Alice Borgeest Garden at Friends Hospital; Ronald A. Durham, BS, HTR, and Nadine G. Kenline, HTR
  • The Evolutive Prosthetic Garden: A New Concept for Elderly Living in Nursing Facilities; Carole Labrecque, BS, CSLA, and Lucie Tremblay, RN, BS, MS
  • The Therapeutic Qualities of Plants; Karen L. Haas, HTR, and Rob McCartney, MS
  • Design of Outdoor Environments for Wellness and the Role of Landscape Architecture; Scott C. Scarfone, ASLA
  • Compact Nature: The Role of Playing and Learning Gardens on Children's Lives; Robin C. Moore, MLA
  • Classroom? Playground? Garden? Or Clinic?; Nancy K. Chambers, HTR, Sonja Johansson, ASLA, and Donna M. Walcavage, ASLA
  • What's a Nice Guy like Me Doing in a Place Like This? A Landscape Architect and Recovering Alcoholic's Thoughts on Designing Therapeutic Landscapes; Robert Benson, MLA
  • The Healing Gardens of Makahikulia: The Landscape as a Healer; Calley O'Neill


Journal of Therapeutic Horticulture 7 - 1993


  • Psychological Principles Applied in Horticultural Therapy; Andrew I. Schwebel, PhD
  • Family Income and Experience Influence community Garden Success; Bashir N. Hassan and Richard H. Mattson, PhD, HTM
  • Selecting Design Services for Therapeutic Landscapes; Jean Stephans Kavanagh, ASLA, and Thomas A. Musiak, ASLA
  • A Survey of Horticultural Therapy Professional Issues; Penny L. Stober, HTR-Prov. and Richard H. Mattson, PhD, HTM
  • Proposed Horticultural Therapy Standards of Practice; Richard H. Mattson, PhD, HTM, Jeanne Merkle, Lori A. Parrett, and Tina M. Waliczek
  • Correctional Youth and the Green Industry; Joel Flagler, MFS, HTR


Journal of Therapeutic Horticulture 6 - 1991


  • Designing Stage-specific Horticultural Therapy Intervention for Patients with Alzheimer’s Disease -  Susan Ebel, PT, HTR
  • Horticulture for Special Populations in China - Wuzhong Zhou and Diane Relf, PhD, HTM
  • Plant Material Arrangements in Therapy - Nili Sneh, MEd, and John Tristan, MS, HTR
  • Teaching Horticulture Skills to Adults with Autism: A Replicated Case Study -  Stuart J. Scheleien, PhD, John E. Rynders, PhD, Theresa Mustonen, Linda A. Heyne, and Sharl J. Kaase
  • Enclave Employment of Individuals with Disabilities in a University Grounds Maintenance Department: A Case Report - Gerald Dobbs and Diane Relf, PhD, HTM


Journal of Therapeutic Horticulture 5 - 1990


  • A Vocational Training Curriculum and Financial Study of a Model Floral Shop Training Program for Special-Needs Youths - Anita Elkins, HTR
  • Characteristics of Horticultural Businesses Hiring Person with Mental Retardation - Diane Relf, PhD, HTM, and Mary DeHart-Bennett
  • Nuturing Plants, Children, and Older Individuals: Intergenerational Horticultural Therapy - Sandra G. Epstein and Denise S. Greenberger
  • Conducting Horticultural Therapy Research: A Methodological Essay - Bob M.Gassaway, PhD
  • A Study Design to Investigate Factors Affecting Preferences of Clients for Hand Tools - Ellen J. Pitt-Nairn, MS, Diane Relf, PhD, HTM, and Alan D. McDaniel, PhD 
  • A Comparison of the Effects of Horticultural Therapy and Pet Therapy on Self-Esteem and Well-Being of Adults with Visual Disabilities - Terri Martin-Yates

Journals from the 1980's

Journal of Therapeutic Horticulture 4 - 1989


  • The Need for Organized Information on Horticulture Projects Which Involve the Disabled Population in Developing Countries - Ann B. Parsons and P. Diane Relf, PhD, HTM
  • Horticultural Therapy Activities for Exceptional Children - Kathleen M. Doutt, HTR, Douglas L. Airhart, PhD, HTM, and Thomas W. Willis
  • Horticultural Therapy and Asian Refugee Resettlement - John Tristan, MS, HTR, and Lucy Nguyen-Hong-Nhiem, PhD
  • The Development of an Empirical Instrument Designed to Measure the Effects of Horticultural Therapy- James A. Azar, PhD, and Thomas Conroy, MA
  • Evaluation of a Horticultural Therapy Program in a Short Term Psychiatric Ward - Sara Williams 
  • An Examination of Plant Density, Diversity, and Use in Honduran Home Gardens- Lynn Ellen Doxon, PhD, and Richard H. Mattson, PhD, HTM


Journal of Therapeutic Horticulture 3 - 1988


  • Horticulture Therapy with a Four-year-old Boy: A Case Report; Edward Hoffman, PhD, and David Castro-Blanco, BA
  • Some Conceptual Ideas in Horticultural Therapy Drawn From Practice; Konrad R. Neuberger, MA
  • A Systematic Approach to Horticultural Therapy; Patricia J. Zandstra, HTM
  • Gardening may Reduce Blood Pressure of Elderly People: Activity Suggestions and Models for Intervention; Johanna Fliegel Lewis, and Richard H. Mattson, HTM
  • Horticultural Activities and Demographic Factors Influence Children’s Self-esteem; Patrick Neal Williams, HTR-PROV, and Richard H. Mattson, HTM


Journal of Therapeutic Horticulture 2 - 1987


  • Horticultural Therapy in Substance Abuse Treatment; Thomas A. Cornille, PhD, Glenn E. Rohrer, PhD, Stephen G. Phillips, BFA, Jean G.Mosier, OTR 
  • Gardens From a Child’s View—An Interpretation of Children’s Art-work; Catherine Eberbach
  • Horticultural Training for Adolescent Special Education Students; Douglas L. Airhart, HTM, Thomas Willis, EdD, Pamela Westrick, MA
  • Evaluating the Effectiveness of Your Horticultural Therapy Program; Patricia J. Zandstra, HTM 
  • Memories of Grandma’s Backyard; Martha M. Tyson


Journal of Therapeutic Horticulture 1 - 1986


  • Nonverbal Aspects of Horticultural Therapy; Allen Jack Autry 
  • Developing Links Between Horticultural Therapy and Aging; David Houseman 
  • Understanding and Overcoming Burnout; Ricky Smith 
  • Apple Picking Productivity of Developmentally Disabled Adults; Richard H. Mattson, HTM, Lynn Ellen Doxon, HTR, PhD Candidate, Stephen Moore
  • Evaluation of Arthritis using the Horticulture Hand Capacities Test; Mark J. Gallagher, HTR, Richard H. Mattson, HTM
  • Group Cohesiveness is Enhance as Children Engage in Plant Stimulated Discovery Activities; Debra Elaine Bunn, HTM