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Variety fit — Pennsylvania

Can I grow Shiro plum in Pennsylvania?

The verdict

Yes

  • Your zone 7a and typical 1708 chill hours both suit this variety.

Based on Pennsylvania’s main growing area (17325): zone 7a, ~1,708 chill hours. Your exact site may differ — check your ZIP.

The numbers

Shiro requirements vs. Pennsylvania climate
Shiro chill requirement400–500 chill hours
Shiro hardinessUSDA zones 5–9
Pennsylvania average chill (17325)1,708 hours (1,460–1,926 across 10 winters)
Pennsylvania zone (17325)USDA zone 7a
USDA pomological watercolor of Shiro plum
Prunus salicina: ShiroUSDA pomological watercolor, Mary Daisy Arnold, 1911 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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Questions

Can I grow Shiro plum in Pennsylvania?
Yes — Your zone 7a and typical 1708 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. Shiro Plum — variety specifications — accessed July 2026