Plant Hardiness Zone by Municipality
Ontario
| 1961-1990 zone | 1981-2010 zone | 1961-1990 hardiness index | 1981-2010 hardiness index |
Tamworth | 5a | 5b | 51 | 57 |
Tara | 5a | 5b | 54 | 59 |
Tavistock | 5b | 6a | 55 | 62 |
Teeswater | 5a | 5b | 52 | 59 |
Teeterville | 5b | 6a | 59 | 64 |
Temagami | 3a | 3b | 31 | 39 |
Terrace Bay | 2b | 3b | 28 | 35 |
Thamesford | 5b | 6a | 58 | 64 |
Thamesville | 6a | 6b | 62 | 66 |
Thedford | 6a | 6b | 62 | 65 |
Thessalon | 4a | 5a | 42 | 50 |
Thornbury | 5b | 6a | 56 | 61 |
Thorndale | 5b | 6a | 58 | 64 |
Thornloe | 2b | 3b | 28 | 35 |
Thornton | 5a | 5b | 52 | 56 |
Thorold | 6a | 6b | 63 | 69 |
Thunder Bay | 2b | 3b | 28 | 39 |
Tilbury | 6b | 7a | 65 | 71 |
Tillsonburg | 5b | 6b | 59 | 65 |
Timmins | 2a | 3a | 21 | 30 |
Tiverton | 5b | 6a | 55 | 61 |
Tobermory | 5a | 5b | 53 | 59 |
Toledo | 5a | 5b | 52 | 58 |
Toronto | 6a | 7a | 62 | 70 |
Trenton | 5b | 6a | 57 | 61 |
Trout Creek | 3b | 4b | 38 | 45 |
Turkey Point | 6a | 6b | 60 | 67 |
Tweed | 5a | 5b | 51 | 57 |
- Date modified: