USDA Growing Zone Calculator
Find your USDA Plant Hardiness Zone based on average annual extreme minimum temperature. Know what plants will thrive in your area.
Inputs
°F
Results
USDA Hardiness Zone
Zone 8a
DescriptionMild — camellias, azaleas, many tropicals
Min Temp (°F)5 °F
Min Temp (°C)-15 °C
USDA Hardiness Zone
Zone 8a
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Avg Annual Extreme Min Temp — The coldest temperature your area typically reaches in winter. Accepts values from -65 °F to 65 °F (default: 5 °F).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- USDA Hardiness Zone — your calculated result. This is the primary result of this calculator.
- Description — your calculated result.
- Min Temp (°F) — shown as a numeric value.
- Min Temp (°C) — shown as a numeric value.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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