| City Name |
USDA Hardiness Zone |
| Toronto |
6 |
| Ottawa |
5 |
| Mississauga |
6 |
| Brampton |
6 |
| Hamilton |
6 |
| London |
6 |
| Markham |
6 |
| Vaughan |
6 |
| Kitchener |
5 |
| Windsor |
7 |
| St. Catharines |
7 |
| Oshawa |
6 |
| Kingston |
6 |
| Sudbury |
4 |
| Thunder Bay |
3 |
| Barrie |
5 |
| Sarnia |
6 |
| Guelph |
5 |
| Cambridge |
6 |
| Brantford |
6 |
| Waterloo |
5 |
| Newmarket |
5 |
| Peterborough |
5 |
| Belleville |
6 |
| North Bay |
4 |
| Timmins |
3 |
| Fort Erie |
6 |
| Niagara Falls |
6 |
| Welland |
6 |
| Orillia |
5 |
| Sault Ste. Marie |
5 |
| Port Colborne |
6 |
| St. Thomas |
6 |
| Pickering |
6 |
| Cornwall |
5 |
| Brockville |
6 |
| Belleville |
6 |
| Elliot Lake |
4 |
| Greater Sudbury |
4 |
| Owen Sound |
6 |
| Woodstock |
6 |
| Collingwood |
6 |
| Orangeville |
5 |
| Chatham-Kent |
6 |
| Bracebridge |
5 |
| Stratford |
6 |
| Hawkesbury |
5 |
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