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Variety fit — Minnesota

Can I grow French Improved Prune plum in Minnesota?

The verdict

Yes

  • Your zone 5a and typical 1191 chill hours both suit this variety.

Based on Minnesota’s main growing area (55401): zone 5a, ~1,191 chill hours. Your exact site may differ — check your ZIP.

The numbers

French Improved Prune requirements vs. Minnesota climate
French Improved Prune chill requirement800 chill hours
Minnesota average chill (55401)1,191 hours (1,020–1,451 across 10 winters)
Minnesota zone (55401)USDA zone 5a
French Improved Prune plumSpecies illustration — no historical watercolor exists for this cultivar

Keep checking

Or the same verdict for another region:

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Questions

Can I grow French Improved Prune plum in Minnesota?
Yes — Your zone 5a and typical 1191 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. French Improved Prune — DWN Variety Finder — accessed July 2026