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Variety fit — Missouri

Can I grow French Improved Prune plum in Missouri?

The verdict

Yes

  • Your zone 6b and typical 1484 chill hours both suit this variety.

Based on Missouri’s main growing area (65201): zone 6b, ~1,484 chill hours. Your exact site may differ — check your ZIP.

The numbers

French Improved Prune requirements vs. Missouri climate
French Improved Prune chill requirement800 chill hours
Missouri average chill (65201)1,484 hours (1,165–1,754 across 10 winters)
Missouri zone (65201)USDA zone 6b
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 Missouri?
Yes — Your zone 6b and typical 1484 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