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Variety fit — Nebraska

Can I grow Key Lime in Nebraska?

The verdict

Not recommended

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

Based on Nebraska’s main growing area (68508): zone 6a, ~1,378 chill hours. Your exact site may differ — check your ZIP.

The numbers

Key Lime requirements vs. Nebraska climate
Key Lime hardinessUSDA zones 8–11
Nebraska average chill (68508)1,378 hours (1,136–1,691 across 10 winters)
Nebraska zone (68508)USDA zone 6a
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 in Nebraska?
Probably not — Your zone 6a 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