2023 USDA Plant Hardiness Zone Map for North Carolina
Source: https://planthardiness.ars.usda.gov/
All Plant Hardiness Zone Maps (PHZM) should serve as general guides for growing perennial plants. They are based on the average lowest temperatures, not the lowest ever.
| Zone | Fahrenheit | |
|---|---|---|
| 1a | −60 to -55 °F | |
| 1b | -55 to -50 °F | |
| 2a | -50 to -45 °F | |
| 2b | -45 to -40 °F | |
| 3a | -40 to -35 °F | |
| 3b | -35 to -30 °F | |
| 4a | -30 to -25 °F | |
| 4b | -25 to -20 °F | |
| 5a | -20 to -15 °F | |
| 5b | -15 to -10 °F | |
| 6a | -10 to -5 °F | |
| 6b | -5 to 0 °F | |
| 7a | 0 to 5 °F | |
| 7b | 5 to 10 °F | |
| 8a | 10 to 15 °F | |
| 8b | 15 to 20 °F | |
| 9a | 20 to 25 °F | |
| 9b | 25 to 30 °F | |
| 10a | 30 to 35 °F | |
| 10b | 35 to 40 °F | |
| 11a | 40 to 45 °F | |
| 11b | 45 to 50 °F | |
| 12a | 50 to 55 °F | |
| 12b | 55 to 60 °F | |
| 13 | 60 to 65 °F | |
| 13b | 65 to 70°F |