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Variety fit — Wisconsin

Can I grow Stanley plum in Wisconsin?

The verdict

Yes

  • Your zone 5b and typical 1415 chill hours both suit this variety.

Based on Wisconsin’s main growing area (53703): zone 5b, ~1,415 chill hours. Your exact site may differ — check your ZIP.

The numbers

Stanley requirements vs. Wisconsin climate
Stanley chill requirement800 chill hours
Stanley hardinessUSDA zones 4–9
Wisconsin average chill (53703)1,415 hours (1,203–1,760 across 10 winters)
Wisconsin zone (53703)USDA zone 5b
USDA pomological watercolor of Stanley plum
Prunus domestica: StanleyUSDA pomological watercolor, J. Marion Shull, 1937 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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Questions

Can I grow Stanley plum in Wisconsin?
Yes — Your zone 5b and typical 1415 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. Stanley Prune — variety specifications — accessed July 2026