Stay Updated with the Latest OHA News
December 50/50 Draw
It's time for our December 50/50 draw, to be held on December 13, 2025....
Recruitment, Retention, and Succession Planning
How can Horticultural Societies and Clubs attract and keep more members...
Trillium Autumn 2025
See for yourself... the Autumn 2025 issue of the OHA Trillium is here now...
Trillium Summer 2025
What you’ve been looking forward to... The summer 2025 issue of the OHA...
OHA Conservation and Environment Committee Trivia
The OHA's Conservation and Environment Committee has made up a trivia...
![2025 OHA Bulb Fundraiser [UPDATED June 18]](https://gardenontario.org/wp-content/uploads/BulbFundraiserThumb.jpg)
2025 OHA Bulb Fundraiser [UPDATED June 18]
Attention: We only have thirteen more days to meet our minimum...
The Trillium News
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Trillium Deadline Dates and Submissions
The Trillium is published 4 times per year:
March 1 – Spring issue
June 1 – Summer Issue
September 1 – Autumn Issue
December 1 – Winter Issue
Submission Guidelines:
Articles for the Trillium should be sent in the following formats: for Windows – Word or plain text; and for Mac/OSX – please use Pages. Photos and other graphics should be sent as separate files (min res 1,000 x 800 pixels) and not as part of a Word file. Full-sized original files are happily accepted.
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Reports & Statements
We provide annual reports that you can review. These reports showcase the work of the OHA and the many projects we support across Ontario.
