• Fusion® Gardening

    St Mark's Anglican Church 1606 Fisher Ave, Ottawa, Ontario, Canada
    In-person meeting with online presentation: Sean James, Horticulturist, Master Gardener, and owner of Sean James Consulting and Design.  
  • OHS 2025 Photo Competition

    Online Competition
    This year’s theme, “The Garden is Your Canvas,” drew a vibrant array of entries. Thank you to all members who submitted photos to this year’s competition! OHS Members are invited to view the stunning photo entries and cast their votes for top picks in each class and the overall “Best in Competition.” Voting closes November 21 at 10:00 PM EST.
  • The Native Bees In Our Backyards

    St Mark's Anglican Church 1606 Fisher Ave, Ottawa, Ontario, Canada
    In-person meeting presentation: Dr. Jessica Forrest, Associate Professor, Faculty of Science (Biology Department), University of Ottawa
  • AGM & Holly Jolly Social

    St Mark's Anglican Church 1606 Fisher Ave, Ottawa, Ontario, Canada
    Members, please join us for our annual holiday social and AGM.
  • Seedy Saturday

    Emmanuel United Church, 691 Smyth Road 691 Smyth Road, Ottawa
    Ottawa Seedy Saturday event details: March 7, 2026, 10 a.m. to 3 p.m. at Emmanuel United Church, 691 Smyth Road. Event features seed vendors from Eastern Ontario and Western Quebec offering heirloom seeds, plus a Seed Exchange table where visitors can donate and pick up seeds.
  • Seed Swap!

    St Mark's Anglican Church 1606 Fisher Ave, Ottawa, Ontario, Canada
    Sprout Something New at the OHS Seed Swap! Integrated into our March Speaker Series on evening of March 24, 2026, the OHS will also be hosting its annual "Seed Swap!" Swap your extra seeds, or simply come explore! Veggie and food‑plant seeds especially encouraged. Packaged, labelled seeds appreciated, but not required.
  • OHS with the FoF Annual Mother’s Day Plant Sale 2026

    Central Experimental Farm, Neatby Bldg., 960 Carling Ave & Maple Dr 960 Carling Avenue, Ottawa, ON, Canada
    OHS at the Friends of the Farm Mother’s Day Plant Sale will be taking place on Sunday, May 10, 2026 at the Central Experimental Farm We’re gearing up for this year’s Mother’s Day Plant Sale and we need your help! Volunteers are needed before the sale (May 3–9) for plant drop off, potting up, and preparation, and on the day of the sale for setup, sales, and clean up. If you can lend a hand, please be sure to email ottawahortweb@gmail.com with the subject line Plant Sale Volunteer.
  • OHS Annual Plant Auction & Sale

    Ron Kolbus Lakeside Centre at Britannia Park 102 Greenview Ave, Ottawa
    Our annual Plant Auction & Sale returns at the end of May — a lively evening that always fills the room. The Auction begins at 7:00 p.m. with spirited bidding on a curated selection of plants, followed by the Plant Sale from 8:00–9:00 p.m. featuring great perennials, houseplants and special finds at excellent prices. Join us for this important OHS fundraiser that supports our many community impact projects. See you there!