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Variety fit — California

Can I grow Cortland apple in California?

The verdict

Not recommended

  • Your zone 9b is warmer than this variety's range (zones 4–7); it may not receive reliable winter chilling.

Based on California’s main growing area (95820): zone 9b, ~1,018 chill hours. Your exact site may differ — check your ZIP.

The numbers

Cortland requirements vs. California climate
Cortland chill requirement800 chill hours
Cortland hardinessUSDA zones 4–7
California average chill (95820)1,018 hours (808–1,470 across 10 winters)
California zone (95820)USDA zone 9b
USDA pomological watercolor of Cortland apple
Malus domestica: CortlandUSDA pomological watercolor, Mary Daisy Arnold, 1930 · USDA Pomological Watercolor Collection

Better apple choices for California

These meet California’s chill hours and zone comfortably:

Keep checking

Or the same verdict for another region:

Questions

Can I grow Cortland apple in California?
Probably not — Your zone 9b is warmer than this variety's range (zones 4–7); it may not receive reliable winter chilling.

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] Utah State University Extension. Apple Production and Variety Recommendations for the Utah Home Garden — accessed July 2026
  4. [4] Dave Wilson Nursery. Apples — DWN Variety Finder product list — accessed July 2026