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Variety fit — Arizona

Can I grow Key Lime citrus in Arizona?

The verdict

Yes

  • Your zone 9b and typical 522 chill hours both suit this variety.

Based on Arizona’s main growing area (85701): zone 9b, ~522 chill hours. Your exact site may differ — check your ZIP.

The numbers

Key Lime requirements vs. Arizona climate
Key Lime hardinessUSDA zones 8–11
Arizona average chill (85701)522 hours (267–731 across 10 winters)
Arizona zone (85701)USDA zone 9b
USDA pomological watercolor of Key Lime citrus
Citrus aurantiifolia: KeyUSDA pomological watercolor, Mary Daisy Arnold, 1916 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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Questions

Can I grow Key Lime citrus in Arizona?
Yes — Your zone 9b and typical 522 chill hours both suit this variety.

Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026
  3. [3] Four Winds Growers. Mexican Key Lime Tree — product page — accessed July 2026