Plant Science for Gardeners: Essentials for Growing Better Plants - Robert Pavlis
Pavlis, Robert: - Robert Pavlis is the owner and developer of Aspen Grove Gardens, a 6-acre botanical garden with 3,000 varieties of plants. Specializing in soil science, Robert has been an instructor for Landscape Ontario. He is a blogger, a chemist, and the author of Soil Science for Gardeners and Building Natural Ponds . He resides in Guelph, Canada.