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Variety fit — Washington

Can I grow Bosc pear in Washington?

The verdict

Yes

  • Your zone 7a and typical 2150 chill hours both suit this variety.

Based on Washington’s main growing area (98801): zone 7a, ~2,150 chill hours. Your exact site may differ — check your ZIP.

The numbers

Bosc requirements vs. Washington climate
Bosc chill requirement500–600 chill hours
Bosc hardinessUSDA zones 5–9
Washington average chill (98801)2,150 hours (1,612–2,552 across 10 winters)
Washington zone (98801)USDA zone 7a
USDA pomological watercolor of Bosc pear
Pyrus communis: BoscUSDA pomological watercolor, Ellen Isham Schutt, 1910 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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Questions

Can I grow Bosc pear in Washington?
Yes — Your zone 7a and typical 2150 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] Dave Wilson Nursery. Bosc pear — variety specifications — accessed July 2026