Don Thomson is the Principle of Gardenridge, Landscape Company based in Melbourne. Don has tertiary qualifications in Forest Science, Urban Planning and Landscape Architecture. He also has been involved with Landscaping Victoria, as treasurer for 3 years, and with the Landscape Industry of Australia as treasurer for 3 years. Over the years Don has been a regular guest speaker on radio 3AW Gardening program and he has written for the Melbourne weekly publication.