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Search our range for plants with a specific winter hardiness, either by entering the desired minimum temperature or the USDA zone.
USDA Zones
| Zone | Temperature Range (°C) | Temperature Range (°F) |
|---|---|---|
| 1 | below -45.6 °C | below -50 °F |
| 2 | -45.6 °C to -40 °C | -50 °F to -40 °F |
| 3 | -40 °C to -34.5 °C | -40 °F to -30 °F |
| 4 | -34.5 °C to -28.9 °C | -30 °F to -20 °F |
| 5 | -28.9 °C to -23.3 °C | -20 °F to -10 °F |
| 6 | -23.3 °C to -17.8 °C | -10 °F to 0 °F |
| 7 | -17.8 °C to -12.2 °C | 0 °F to 10 °F |
| 8 | -12.2 °C to -6.7 °C | 10 °F to 20 °F |
| 9 | -6.7 °C to -1.1 °C | 20 °F to 30 °F |
| 10 | -1.1 °C to 4.4 °C | 30 °F to 40 °F |
| 11 | 4.4 °C to 10 °C | 40 °F to 50 °F |
| 12 | above 10 °C | above 50 °F |
USDA zones help determine the winter hardiness of plants.