Master Gardeners of Ontario Inc.

Motivating and Inspiring Gardeners in Ontario

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The love of gardening is a seed once sown that never dies.
Gertrude Jekyll


Honorary Master Gardeners




The Honorary Master Garden title is awarded to outstanding individuals who share our passion for sustainable garden practices and are friends of the Master Gardener of Ontario program. We are proud to recognize their contribution to the gardening public and to our communities.

  1. Sofie Bigham

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  2. Mark Cullen

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    Mark is one of Canada's best known gardeners connecting with over one million Canadians weekly through various media. His personable style and topical information has captivated audiences and continues to garner him fans across Canada.

  3. Dr. Jim Cruise

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    Dr. Cruise, a botanist, was director of the Royal Ontario Museum from 1975 to 1985.

  4. Charlie Dobbin

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    Charlie is an internationally known horticulturist and landscape designer. During her over two-decade career, she has become well known for her professional gardening seminars and demonstrations, as well as for her prolific articles in newspapers and magazines.

  5. Cathy Dueck

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    Cathy is a lifelong naturalist who has been gardening since her teens. A graduate of Trent University in Environmental Science, Cathy’s passion is teaching about land stewardship in its many forms. Over the years, she has been a guest speaker for horticultural societies, universities and colleges, and developed a range of programs for the public including environmental education for children and community-based urban forestry.

  6. Denis Flanagan

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    Originally from England, Denis trained at Merrist Wood Horticultural College in Surrey. While working for an upscale London Nursery, he helped Princess Margaret and Lord Snowden landscape their estate in Sussex. Since transplanting himself to Canada, he's thrived as a nurseryman and landscape designer. In his current position at Landscape Ontario, he finds it rewarding to share his love of gardening with the younger generation.

  7. Wayne Hugli

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    Wayne, an educator and devoted gardener, is a life member and past president of the Sudbury Horticultural Society who works closely with the Sudbury Master Gardeners on their many local initiatives. In 2005 he championed the regreening of local schoolyards through the Ugliest Schoolyard Contest. Since then, more than 40 schools have received support for their projects.

  8. Lorraine Johnson

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    Lorraine is the author of numerous books, including Garden Plants and Flowers: A-Z Guide to the Best Plants for Your Garden and 100 Easy-to-Grow Native Plants for Canadian Gardens. Her writing has appeared in such publications as on Nature, Chatelaine, and the Globe & Mail, and she makes regular appearances on CBC Radio and TV.

  9. Guy Jolin

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  10. Liz Klose

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    Liz is an avid life-long gardener and appeared as a guest on HGTV’s Gardener’s Journal and Calling All Gardener’s. A co-author of two gardening books, Liz is a Certified Landscape Professional (CLP).

  11. Thomas Laviolette

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    Thomas is superintendent of the Niagara Parks Botanical Gardens and Butterfly Conservatory, the Floral Showhouses and Parks Greenhouse Production, in Niagara Falls, Ontario.

  12. Ed Lawrence

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    Retired head gardener to six Canadian Governors General and Prime Ministers, Ed has provided practical, down-to-earth advice that has become the final word in gardening for more than half a million loyal listeners and fans in all media.

  13. Lorraine Mennen

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    Lorraine is an International garden speaker, an ecological gardener and a passionate teacher. Lorraine has made numerous television and radio guest appearances and is a garden expert for television’s The Weather Network. A talented writer, Lorraine also published her first book in 2006, Garden Great Rooms: Extending Your Living Space Outdoors.

  14. John Valleau

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    John was the corporate horticulturist for Valleybrook Gardens in the Niagara area. They were the Ontario growers for Heritage Perennials. His book Perennial Gardening Guide has been a best selling resource for many years.

  15. Ray Wilhelm

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    Raymond was one of Stratford Master Gardener charter members - from 1986. He was a dedicated advisor for 22 years until his retirement at 85 in 2008.

  16. Paul Zammit

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    Paul is an active member of many Canadian and international gardening communities. He lectures on a wide array of subjects, including container gardening, perennials, ground covers and tropicals.