GARDENING BEYOND THE BACKYARD · ONTARIO
Ontario gardening events, seed swaps & grower communities
Growers learn from each other, not just from seed packets. Explore upcoming Ontario seed exchanges, discover the giant-vegetable weigh-off community, and find practical guides to bring what you learn home.
UPCOMING EVENTS · NOVEMBER 2026
Native seed giveaways and winter sowing in Ottawa
The Ottawa Wildflower Seed Library has three free native-seed giveaways in November 2026. Check the organizer’s details before travelling, and review its seed catalogue and winter-sowing instructions before choosing plants for your garden.
- November 7, 1–3 p.m.: Copeland Park, Trinity United Church, 1099 Maitland Avenue, Ottawa. Official event details.
- November 14, 1:30–3:30 p.m.: Orléans, Bob MacQuarrie Recreation Complex, Hall A, 1490 Youville Drive, Ottawa. Official event details.
- November 21, 1–3 p.m.: Hintonburg, Tom Brown Arena, 141 Bayview Station Road, Ottawa. Official event details.
Want to learn how to start native seeds? A winter-sowing presentation is scheduled for November 8, 2–4 p.m., at Trend Arlington Community Building in Ottawa. See the workshop details. Before attending, note your available growing space, light and soil conditions, and record the species and source of seeds you collect. See what to record in a garden journal.
Organizer information verified October 29, 2026. GrowRite is not an organizer or sponsor. Check the official calendar for changes.
UPCOMING EVENTS · 2027
Meet other gardeners before planting season
These Ontario event dates appear on the Seeds of Diversity community calendar as of October 27, 2026. Schedules, venues and admission can change; always check the organizer before going.
February 6, 2027 · 10 a.m.–3 p.m. · Hamilton
Hamilton Seedy Saturday
Seed exchanges, heirloom varieties and community workshops. Co-hosted by Green Venture and Hamilton Public Library.
February 13, 2027 · 10 a.m.–3 p.m. · Fonthill
Niagara Seedy Saturday
Seed swap, gardening vendors and advice from Master Gardeners of Niagara. Check the organizer’s latest details before travelling.
February 20, 2027 · 10 a.m.–2 p.m. · West Lincoln
West Niagara Seedy Saturday
Seed exchange and local gardening groups hosted with area public libraries. See the Seeds of Diversity listing for details.
March 6, 2027 · 10 a.m.–noon · Cambridge
rare Seedy Saturday
A community seed exchange for beginners and experienced growers at rare Charitable Research Reserve.
March 6, 2027 · 10 a.m.–3 p.m. · London
London Middlesex Seedy Saturday
Seed swap, speakers and gardening vendors. Verify the 2027 venue with the organizer before travelling; published address details differ between sources.
March 13, 2027 · 10 a.m.–3 p.m. · Brampton
Brampton Seedy Saturday & Garden Show
Seed sharing, expert talks and local organizations, presented with the Brampton Horticultural Society.
For more events and possible updates, see Seeds of Diversity’s Canadian Seedy Saturday and gardening-event calendar. Listings are independent; GrowRite is not an organizer or sponsor.
BEFORE YOU GO
Make the most of a seed swap
Prepare what you have
Bring clean, accurately labelled seeds if the event accepts swaps. Check the event’s rules for acceptable age, packaging and species.
Plan what you need
Think about your growing space, light and transplant timing before collecting more seeds than you can use.
Record what you found
Note each new variety, its source and the dates you expect to sow and transplant. This makes the next season easier to review.
GIANT VEGETABLES · 2026 RECAP
Where Ontario’s giant growers gather
Giant-pumpkin and vegetable weigh-offs bring growers together to exhibit, compare results and share growing experience. Two recent examples are Port Elgin Pumpkinfest (October 3–4, 2026) and the Woodbridge Fall Fair giant vegetable weigh-in (October 10, 2026). These events have finished for 2026; dates for their 2027 competitions should be confirmed with organizers.
Port Elgin Pumpkinfest
The published 2026 leaderboard records John Butler of St. Thomas in second place for giant pumpkin at 1,489 lb, first for giant squash at 1,086.5 lb and first for tallest sunflower at 278.5 inches.
Woodbridge Fall Fair
The fair scheduled a giant vegetable weigh-in on Saturday, October 10, 2026. Consult the fair and Great Pumpkin Commonwealth for verified entries, rules and future dates.
Want to understand how weigh-offs work and where results are recorded? Read our Ontario giant-vegetable weigh-off guide →
GARDEN CLUBS & COMMUNITIES
Find people who love growing as much as you do
Giant Vegetable Growers of Ontario
A community for growers of giant pumpkins, squash and other giant vegetables, with seed resources, memberships and sanctioned weigh-offs. The association says 2027 weigh-off details will follow when confirmed.
St. Thomas & District Horticultural Society
A longstanding local society associated with flower shows, garden tours and plant sales. Its public directory listing contains older meeting information, so confirm current activities before attending.
Seeds of Diversity
A Canadian network for seed conservation, sharing and seed exchanges. Its national events directory is a useful place to discover gatherings beyond this Ontario selection.
OUR SOURCES & UPDATES
Real events, verified dates
This is a selective guide, not a complete provincial calendar. The upcoming 2027 event dates were checked against Seeds of Diversity’s event listings on October 27, 2026; past weigh-off information comes from the event organizers. We distinguish reported results from interviews and do not claim endorsement by featured growers or organizations. Please verify attendance details with organizers before travel.
Primary sources: Seeds of Diversity events; Port Elgin Pumpkinfest results; Woodbridge Fair schedule; GVGO.
Take what you learn into your own garden
A new seed variety, an idea from a workshop, or an observation from another grower becomes more useful when you put it into practice.