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Variety fit — Michigan

Can I grow Key Lime citrus in Michigan?

The verdict

Not recommended

  • Your zone 6b is colder than this variety's hardiness range (zones 8–11); winter cold may damage or kill the tree.

Based on Michigan’s main growing area (49417): zone 6b, ~1,740 chill hours. Your exact site may differ — check your ZIP.

The numbers

Key Lime requirements vs. Michigan climate
Key Lime hardinessUSDA zones 8–11
Michigan average chill (49417)1,740 hours (1,307–2,091 across 10 winters)
Michigan zone (49417)USDA zone 6b
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:

Questions

Can I grow Key Lime citrus in Michigan?
Probably not — Your zone 6b is colder than this variety's hardiness range (zones 8–11); winter cold may damage or kill the tree.

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