| Archer | David | Lombardy | Yes | | | |
| Archer | Madeline | Lombardy | Yes | | | D 2 Perth HS |
| Baars | Joanna | Arthur | Yes | | | D 7 Grand Valley Horticultural Society |
| Barratt | Toby | Pakenham | Yes | | | D 2 Pakenham HS |
| Barratt | Bernice | Stratford | Yes | GCO-design | | D 10 Stratford DHS |
| Bartlett | Linda | Perth | Yes | | | D 2 Perth HS |
| Batke | Alan | Kingsville | Yes | | | |
| Black | Sandy | Renfrew | Yes | | | |
| Bouma | Kathy | Fergus | Yes | | | |
| Brady | Heather | Merrickville | Yes | | | |
| Burroughs | Agnes | Dorchester | Yes | | | |
| Caldwell | Fran | Brampton | Yes | | | D 15 Brampton HS |
| Cameron | Mary | Burlington | Yes | RBG 2011 Hort, Rose | | |
| Cappelli | Pat | North York | Yes | | | D 5 North York Garden Club |
| Carlson | Patty | Lindsay | Yes | GCO-design, RBG-hort, | | |
| Carson | Marie | Hanover | Yes | | | |
| Chute | Dian | Thorndale | Yes | | | |
| Clendenning | Linda | Blenheim | Yes | | | |
| Cole | Nancy | Yarker | Yes | | | D 3 Collins Bay and District HS |
| Collins | Elaine | Gananoque | Yes | GCO-design | | |
| Cranston | Anne | Bruce Mines | Yes | | | |
| Culbert | Vicky | Goderich | Yes | OAAS Hort 2018 | | |
| Decker | Marie | Oakville | Yes | GCO-design, RBG-hort & Rose | | |
| Eley | Ursula | Toronto | Yes | GCO-design, RBG-hort | | D 5 Greater Toronto Bulb Society |
| Ellenor | Sandy | Belle River | Yes | | | |
