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Variety fit — Michigan

Can I grow Shiro plum in Michigan?

The verdict

Yes

  • Your zone 6b and typical 1740 chill hours both suit this variety.

Based on Michigan’s main growing area (49417): zone 6b, ~1,740 chill hours. Your exact site may differ — check your ZIP.

The numbers

Shiro requirements vs. Michigan climate
Shiro chill requirement400–500 chill hours
Shiro hardinessUSDA zones 5–9
Michigan average chill (49417)1,740 hours (1,307–2,091 across 10 winters)
Michigan zone (49417)USDA zone 6b
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:

Planting a Shiro in Michigan? Get its care calendar for your exact ZIP code, with email reminders.

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Questions

Can I grow Shiro plum in Michigan?
Yes — Your zone 6b and typical 1740 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