| Name | City | OHA Cert | Other Cert | Districts | OHA Home Society: |
|---|---|---|---|---|---|
| Wendy Melanson | L'Amable | Yes |
| D 3 Bancroft HS | |
| Wayne Pfeffer | Ayton | Yes |
| D 8 Chesley HS | |
| Wale Shamonda Gordon | Rockwood | Yes |
| Guelph D7 | |
| Vicky Culbert | Goderich | Yes | OAAS Hort 2018 |
| Goderich and Disrtict HS D8 |
| Ursula Eley | Toronto | Yes | GCO-design, RBG-hort |
| D 5 Greater Toronto Bulb Society |
| Trish Symons | Orangeville | Yes | GCO-design, RBG-hort, Rose |
| D 7 Orangeville HS |
| Toby Barratt | Pakenham | Yes |
| D 2 Pakenham HS | |
| Suzi Gabany | Port Hope | Yes |
| D 4 Port Hope Garden Club | |
| Susan Papineau | Durham | Yes |
| D 8 Durham & District HS | |
| Silvana Croce | Stouffville | Other | GCO-design, RBG-hort. & Rose |
| |
| Sherry Howard | Whitby | Yes |
| D17 Brooklin Whitby GC | |
| Shelley MacKenzie | Fingal | Yes |
| D 10 St Thomas Hs | |
| Sheila King | Manotick | Yes |
| D 2 Manotick HS | |
| Sharon Nivins | Lucknow | Yes |
| D8 Lucknow HS | |
| Sharon Garner | Brantford | Yes |
| D 6 Brantford Garden Club | |
| Sandy Ellenor | Belle River | Yes |
| D 11 Essex HS | |
| Sandy Black | Renfrew | Yes |
| D 2 Pakenham HS | |
| Sandra Wilson | London | Other | GCO-design |
| D 10 London HS |
| Sandra Rammelaere | Tilbury | Yes |
| D 11 Tilbury DHS | |
| Sandra Hartill | Bracebridge | Yes |
| D 18 Gravenhurst HS | |
| Sandi Remedios | Hamilton | Yes |
| D 6 Burlington HS | |
| Ruth Price | Kincardine | Yes |
| D8 Teeswater HS | |
| Rose Odell | Waterloo | Yes |
| D 19 Waterloo HS | |
| Ritsuko Honda | Wilno | Yes |
| D 2 Madawaska Valley HS | |
| Penny Stewart | Joyceville | Yes | RBG-Hort GCO-Design |
| D 3 Gananoque HS |
| Name | City | OHA Cert | Other Cert | Districts | OHA Home Society: |
