| 2024 | 08 | Durham and District Horticultural Society | DDHS | 1896 |
| 2024 | 04 | Ennismore & District Horticultural Society | Ennismore Garden Club | 2013 |
| 2024 | 06 | Acton Horticultural Society | Acton Horticultural Society | 1918 |
| 2024 | 08 | Teeswater-Culross Horticultural Society | | 1922 |
| 2024 | 06 | Brantford Horticultural Society | Brantford Garden Club | 1852 |
| 2024 | 16 | Wasaga Beach Horticultural Society | Wasaga Beach Garden Club | 1997 |
| 2024 | 08 | Auburn Horticultural society | | 1950 |
| 2024 | 07 | Harriston and District Horticulture Society | Harriston Horticulture Society | 1952 |
| 2024 | 03 | Ameliasburgh Garden Club. | | 1982 |
| 2024 | 07 | Arthur Horticultural Society | Arthur &District Horticultural Society | 1918 |
| 2024 | 16 | Midland Horticultural Society | Midland Garden Club | 1897 |
| 2024 | 17 | Beaverton Horticultural Society | Beaverton Garden Club | 1922 |
| 2024 | 06 | Waterford & District Horticultural Society | | 1957 |
| 2024 | 02 | Ottawa Horticultural Society | | 1854 |
| 2024 | 10 | Stratford and District Horticultural Society | GardenStratford | 1878 |
| 2024 | 01 | Gloucester Horticultural Society | | 1925 |
| 2024 | 15 | Roselands Horticultural Society | | 1926 |
| 2024 | 06 | Flamborough Horticultural Society | FlamHort Garden Club | 1939 |
| 2024 | 07 | Mount Forest Horticultural Society | | 1953 |
| 2024 | 16 | Elmvale and District Horticultural Society | E.D.G.E. | 1979 |
| 2024 | 11 | Leamington Horticultural Society | | 1951 |
| 2024 | 05 | Leaside Garden & Horticultural Society | Leaside Garden Society | 1986 |
| 2024 | 17 | Pickering Horticultural Society | Pickering Garden Club | 1933 |
| 2024 | 05 | Stouffville Horticultural Society | | 1924 |
| 2024 | 14 | Dryden and District Horticultural Society | | 1989 |
