Trillium Summer 2025

The Spring 2025 Trillium is available here!

OHA Conservation and Environment Committee Trivia

The OHA's Conservation and Environment Committee has made up a trivia quiz with fun and interesting facts about pollinators, plants and trees. You can use the multiple choice and true/false questions as ice breakers at your meetings, or as a team game, or as a way to...

2025 OHA Bulb Fundraiser [UPDATED June 18]

Attention: We only have  thirteen more days to meet our minimum requirement of 100 cases for the special Bulb Order from Tradewinds. This is a fundraiser for the Ontario Horticultural Association which does not receive any monies from any other source than the...

July 50/50 Draw

The next 50/50 Draw takes place on July 19th. Current raffle is $2,960, with the winner taking half!!

Fall Bulb Sale

Fall bulbs are now available to be ordered

GardenOntario website migration

Update 2025-05-19: There were some technical issues, but migration is now complete. You should now find that the website is significantly more responsive that before! If you experience any issues, please let the Web Coordinator know. On Saturday, May 17, we will be...

Earth Day 2025 Videos

As you are aware, Earth Day was held on April 25th.  It was a lovely evening with excellent talks and questions. We had Emily Posteraro attend who spoke on the Box Tree Moth & the Spotted Lanternfly. Emily's video is accessible via the below link:...

AGM Registration is now open!

Registration for the OHA's 2025 Annual General meeting is now open. Please see the AGM page to register or to get more information  

GardenOntario Scholarship

The Ontario Horticultural Association is committed to assisting its Affiliated Society/Club members and their children and grandchildren in their pursuit of post-secondary education in a Horticulture-related field. The Ontario Horticultural Association may offer up to...

July 50/50 Draw

Our next 50/50 Draw takes place on July 19th!! Purchase your tickets by July 18th, for our next draw on July 19th to ensure your place in the next big draw. The more tickets sold the higher the 50/50 jackpot will grow! Your support makes all the difference. All...

Welcome

For more than 100 years, the OHA has supported gardening in Ontario with programs on gardening education, community events, and shows. GardenOntario is here to help you get growing and get involved!

Whether you are a new gardener looking for support or an experienced one who is willing to share what you know, there is a place for you at GardenOntario.

Visit our Garden Shop to get all the latest supplies. From pins to note cards, we have what you need… Also, order our bright and cheery logo on t-shirts, banners, and a variety of marketing materials online at our custom printables shop!

The Trillium is a newsletter produced quarterly. To receive an electronic copy, please email the Trillium Distributor (secretary@gardenontario.org) and the next issue will be sent directly to your inbox.

Past issues can be found on the Trillium page.

Volunteering and Fundraising

Many rewarding opportunities!
Get Involved