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Variety fit — Ontario

Can I grow Bosc pear 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

Bosc requirements vs. Ontario climate
Bosc chill requirement500–600 chill hours
Bosc hardinessUSDA zones 5–9
Ontario average chill (L2R)1,677 hours (1,342–1,953 across 10 winters)
Ontario zone (L2R)USDA zone 6b
USDA pomological watercolor of Bosc pear
Pyrus communis: BoscUSDA pomological watercolor, Ellen Isham Schutt, 1910 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

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

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Questions

Can I grow Bosc pear 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. Bosc pear — variety specifications — accessed July 2026