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:

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

Web Site:

Bio:  Todd Boland lives in St. John's Newfoundland where he is currently Research Horticulturistat Memorial University of Newfoundland.

Bio:  Tony describes himself as an ‘avid gardener, with interests in native plants, rock gardening, Chinese and Japanese woodland plants, hardy succulents, and plants of evolutionary and botanical interest.’

Bio:  I have been a lifelong gardener, but my first love was science. I graduated as a Registered Medical Technologist (Bacteriology) and worked in that field for 5 years.