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USDA Plant Hardiness Zones
| Zone | Temperature Range |
|---|---|
| Zone 1 | below -50° F |
| Zone 2 | -50° to -40° F |
| Zone 3 | -40° to -30° F |
| Zone 4 | -30° to -20° F |
| Zone 5 | -20° to -10° F |
| Zone 6 | -10° to 0° F |
| Zone 7 | 0° to 10° F |
| Zone 8 | 10° to 20° F |
| Zone 9 | 20° to 30° F |
| Zone 10 | 30° to 40° F |
| Zone 11 | above 40° F |