Zone 6a -10°F to -5°F | Zone 6b -5°F to 0°F | Zone 7a 0°F to 5°F |
Zone 7b 5°F to 10°F | Zone 8a 10°F to 15°F |
Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of North Carolina which ranges from USDA Zone 6a to USDA Zone 8a.