IPPS History
The IPPS started in the United States in 1990 as the “National People Plant Symposium”, which led to a request from the participants to continue having conferences on this interdisciplinary subject and the formation of the People Plant Council. A series of biennial meetings is the result. There were many participants from oversea countries to these symposia so beginning with the 4th People-Plant Symposium they have been referred to as “International” symposium. In 1998, the 5th IPPS was held in Sydney, Australia, the first time the meeting was held out of the U.S. The 8th IPPS was held in Awaji, Japan, the first to be held in Asia.
| Year | Location | Proceedings |
| 1990 | Alexandria, VA (VA Tech University host) | The Role of Horticulture in Human Well-being and Social Development, 1992. D. Relf, Editor. Timber Press |
| 1992 | Newark, NJ (Rutgers University host) | People-Plant Relationships: Setting Research Priorities, 1994. J. Flagler and R.P. Poincelot, Editors. Haworth Press |
| 1994 | Davis, CA (UC Davis host) | The Healing Dimensions of People-Plant Relations, 1994. M. Francis, P. Lindsey, and J.S. Rice, Editors. Center for Design and Research, U.C. Davis |
| 1996 | San Antonio, TX (Texas A&M host) | People Plant Interactions in Urban Areas, 1996. P. Williams and J. Zajicek, Editors. Department of Horticultural Science, Texas A&M University |
| 1998 | Sydney, Australia (University of Technology, Sydney host) | Towards a New Millennium in People-Plant Relationships, 1999. M.D. Burchett, J. Tarran, and R.A. Wood, Editors. University of Technology, Sydney, Printing Services |
| 2000 | Glencoe, IL (Chicago Botanic Garden host) | Interaction by Design: Bringing People and Plants Together for Health and Well-being, 2002. C.A. Shoemaker, Editor. Iowa State Press |
| 2002 | Toronto, Canada (as a part of the ISHS International Horticultural Congress) | XXVI International Horticultural Congress: Expanding Roles for Horticulture in Improving Human Well-Being and Life Quality . 2004. D. Relf, Editor. Acta Horticulturae 639 |
| 2004 | Awaji, Japan (jointly with the International Horticultural Therapy Summit and the Annual Meeting of the Japanese Society of People-Plant Relationships) | VIII International People-Plant Symposium on Exploring Therapeutic Powers of Flowers, Greenery and Nature. 2008. E. Matsuo, P.D. Relf, and M. Burchett, Editors. Acta Horticulturae 790 |
| 2006 | Seoul, Korea (as a part of the ISHS International Horticultural Congress) | XXVII International Horticultural Congress – IHC2006: International Symposium on Horticultural Practices and Therapy for Human Well-Being. 2008. C.A. Shoemaker, Editor. Acta Horticulturae 775 |
| 2009 | Manhattan, Kansas (Kansas State University host) |