Panayoti Kelaidis is a plant explorer, gardener and public garden administrator associated with Denver Botanic Gardens where he is now Senior Curator and Director of Outreach.
Paul Spriggs has been rock gardening for roughly 22 years and building crevice gardens for about 15 years.
Bio: Paul Zammit, a graduate of the University of Guelph, is the Nancy Eaton Director of Horticulture at the Toronto Botanical Garden.
Web Site: http://www.peterkornstradgard.se
Peter Zale, Ph.D holds a Master’s degree and Ph.D in plant breeding and genetics (2009, 2014) from The Ohio State University
Bio: Rene is newly retired from the Montreal Botanical Garden where he was curator of the alpine garden at for 23 years.
Robert Pavlis is a well-known speaker, and educator with over 40 years of gardening experience. He is the author of several books, Building Natural Ponds, Soil Science for Gardeners and Garden Myths
Sharon and John Bowler
Sharon and John Bowler are members of the Grimsby Garden Club and the Ontario Rock Garden and Hardy Plant Society.
As she describes herself, Susan Chater was born in England with a gardening grandmother who enriched her life with a love of gardening.