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Variety fit — Manitoba

Can I grow Bosc pear in Manitoba?

The verdict

Not recommended

  • Your zone 4a is colder than this variety's hardiness range (zones 5–9); winter cold may damage or kill the tree.

Based on Manitoba’s main growing area (R3C): zone 4a, ~875 chill hours. Your exact site may differ — check your ZIP.

Bosc requirements vs. Manitoba climate
Bosc chill requirement500–600 chill hours
Bosc hardinessUSDA zones 5–9
Manitoba average chill (R3C)875 hours (579–1,211 across 10 winters)
Manitoba zone (R3C)USDA zone 4a
USDA pomological watercolor of Bosc pear
Pyrus communis: BoscUSDA pomological watercolor, Ellen Isham Schutt, 1910 · USDA Pomological Watercolor Collection

These meet Manitoba’s chill hours and zone comfortably:

Or the same verdict for another region:

Can I grow Bosc pear in Manitoba?
Probably not — Your zone 4a is colder than this variety's hardiness range (zones 5–9); winter cold may damage or kill the tree.

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. Bosc pear — variety specifications — accessed July 2026