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Variety fit — Ontario

Can I grow Santa Rosa plum in Ontario?

The verdict

Yes

  • Your zone 6b and typical 1677 chill hours both suit this variety.

Based on Ontario’s main growing area (L2R): zone 6b, ~1,677 chill hours. Your exact site may differ — check your ZIP.

The numbers

Santa Rosa requirements vs. Ontario climate
Santa Rosa chill requirement300 chill hours
Ontario average chill (L2R)1,677 hours (1,342–1,953 across 10 winters)
Ontario zone (L2R)USDA zone 6b
USDA pomological watercolor of Santa Rosa plum
Prunus salicina: Santa RosaUSDA pomological watercolor, J. Marion Shull, 1935 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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Questions

Can I grow Santa Rosa plum in Ontario?
Yes — Your zone 6b and typical 1677 chill hours both suit this variety.

Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] Natural Resources Canada. Plant Hardiness Zones of Canada — accessed July 2026
  3. [3] Dave Wilson Nursery. Santa Rosa Plum — DWN Variety Finder — accessed July 2026