Richmond Hill Garden and Horticultural Society, Ontario Horticultural Association
Richmond Hill 
Garden & Horticultural Society
Beautifying Richmond Hill since 1914Beautifying Richmond Hill
since 1914
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2017 Program (2018 coming soon)

Jan 10

Our January General Meeting was cancelled due to treacherous, icy roads.


Feb 7

AGMAnnual General Meeting and Photographic Recap of 2016

Originally scheduled for January, our Annual General Meeting moved to February, including election of our 2017 Officers.

This meeting is a great opportunity to discover the breadth and depth of our all-volunteer organization, and includes a photographic slideshow featuring many of our 2016 events. 


Mar 7

Joan StonehockerSeeds for Change, Joan Stonehocker (filling in for Lynne Koss)

Seeds for Change is a grass roots community organization that has partnered with the York Region Food Network to create healthier neighbourhoods through school and community gardens.

Joan Stonehocker, Director at the York Region Food Network, will fill in for our originally-scheduled speaker, Lynne Koss.

Lynne Koss's passion is to address a worldwide social issue and make a positive impact on the lives of many people. While providing programs for children, youth and adults, and growing food for the community, the organization that Lynne and her daughter founded in 2010 empowers people to foster a sense of appreciation for the environment while establishing critical life skills.


Apr 4

Ken BrownThe Three Plus One Tenors, Ken Brown

Ken Brown, guest speaker at the 2016 Richmond Hill Blooms Gala, will make a case for why he believes Iris, Peony, Daylily and Lily are the four powerful perennials that should be the backbone of any perennial garden. Ken’s presentation will include an overview of these plants’ amazing ranges of sizes, colours and textures, as well as methods of propagation and planting, and ongoing care and feeding. 
Former Toronto Zoo Superintendent of Horticulture and owner of The Plant Manager interior landscaping firm, Ken Brown shares his love of horticulture through teaching, public speaking, and writing. Visit Ken online at .

May 2

Dennis ZhuCarnivorous Plants, Dennis Zhu

Plants that trap and consume insects and other small creatures are fascinating, and our speaker this evening is an enthusiast who will introduce us to the biodiversity, physiology and cultivation of this peculiar plant group.

Dennis Zhu is an 18 year old Grade 12 student at Richmond Hill High School, and a member of the after school Garden Club. He is passionate about the science of plants, and maintains an extensive collection of carnivorous plants at home, some of which he will bring to our meeting. Dennis has gained considerable knowledge about an intriguing plant type with which most of us are unfamiliar, and he may also be the youngest speaker our society has had in its 103 years!


Jun 6

Dugald CameronVines and Climbers, Dugald Cameron

Vertical gardening is a growing trend. Whether you've got a small urban garden or a large crowded garden, there's a perfect location for a climber somewhere on your property. Dugald will entice us with photos and information about the new and overlooked in the world of Clematis and other vines.
Dugald Cameron is a founder of Garden Import, a popular mail order nursery that he ran for more than 30 years. Dugald was also the first President of the Greater Toronto Bulb Society and a member of the Toronto Botanical Garden Board of Directors for 13 years. Well known on stages at venues such as Canada Blooms, Dugald is an engaging and knowledgeable speaker on a variety of horticultural topics.


Jul 4

Carol PasternakButterfly Gardens, Carol Pasternak
Coincidental with Asclepias Tuberosa (aka, butterfly flower) being named the 2017 Perennial Plant of the Year by the Perennial Plant Association, this evening’s speaker will help us identify the varieties of butterflies native to southern Ontario, and which plants and resources to include in our gardens to attract the greatest number of these beautiful pollinators.
Carol Pasternak, author of the beautifully illustrated book, How to Raise Monarch Butterflies, can frequently be found at gardening and naturalist events, raising awareness of the challenges faced by butterflies such as Monarchs, and encouraging behaviors to sustain the continued existence of these beautiful pollinators. Carol can be found on the web at


Aug 1

Dan CooperGardening from a Hammock, Dan Cooper
Leveraging advice from 17 Canadian gardening experts and accompanied by beautiful photographs, our speaker will recommend low-maintenance plants, soil preparation and watering techniques to provide maximum benefit for gardening effort and choices.
Dan Cooper, co-author of the book, Gardening from a Hammock, Master Gardener, and founder of Green Gardens and Tours; spent years designing and planting gardens, and now also enjoys time photographing and writing about his gardening travels. Dan is reachable online at

Sep 5

Frank KershawVariegated Plants…Flashlights in the Shade Garden, Frank Kershaw
Frank will make a case for why we should consider plants with variegated foliage to be suitable alternatives to flowering plants in locations where they have the opportunity to light up dark areas, like "flashlights."
Frank Kershaw is an award-winning horticulturist with forty+ years of industry experience. He is an accomplished teacher, writer, photographer, as well as a popular garden tour leader and lecturer at gardening events. Our society so enjoyed his presentation on Creative Small Garden Designs last summer that we are delighted to welcome him back!


Oct 3

Pat de ValenceTrees Add Property Value, Pat de Valence

There are many beneficial reasons to include trees on our properties, but did you know that mature trees increase property values? Master Gardener Pat de Valence will share the specifics with us, and also provide insights into tree selection, location and care.
Pat de Valence, a member of the Lake Simcoe South Master Gardeners, is an avid gardener who shares her knowledge and passion with others at events such as ours and Canada Blooms.


Nov 7

Heinke ThiessenGarden Dreams and Great Designs, Heinke Thiessen
November is a good time to plan for the future, and with this in mind, Heinke will provide advice for garden designs and plant selection to help ensure year round interest with less maintenance.
Heinke Thiessen, who thrilled us with her winter container designs last November, has been a gardening enthusiast since her early childhood in Quebec. Retired proprietor of Perennial Pleasures Landscape Design, Heinke is currently a horticultural design judge accredited by the Royal Botanical Garden, and President of Credit Valley Horticultural Society in Mississauga.

Dec 5

Holiday CelebrationHoliday Celebration 
Celebrate the season with your gardening colleagues at this gala event, held at a new location in 2017 and featuring professional entertainment, a delicious dinner, silent auction and the ever-popular red bag raffle.

For more information about this special, ticketed event, click here.



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