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Variety fit — Colorado

Can I grow Eureka Lemon citrus in Colorado?

The verdict

Not recommended

  • Your zone 7a is colder than this variety's hardiness range (zones 8–11); winter cold may damage or kill the tree.

Based on Colorado’s main growing area (81501): zone 7a, ~1,650 chill hours. Your exact site may differ — check your ZIP.

The numbers

Eureka Lemon requirements vs. Colorado climate
Eureka Lemon hardinessUSDA zones 8–11
Colorado average chill (81501)1,650 hours (1,253–1,821 across 10 winters)
Colorado zone (81501)USDA zone 7a
USDA pomological watercolor of Eureka Lemon citrus
Citrus limon: EurekaUSDA pomological watercolor, Ellen Isham Schutt, 1912 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

Questions

Can I grow Eureka Lemon citrus in Colorado?
Probably not — Your zone 7a 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. Eureka Lemon Tree — product page — accessed July 2026