Can You Grow Lettuce in Canadian Zone 0?
Quick Answer:
❌ No — Lettuce bolts quickly in high heat but can be grown in spring and fall even in warm zones.
❌ No
Lettuce won't survive Canadian Zone 0 winters outdoors
Lettuce bolts quickly in high heat but can be grown in spring and fall even in warm zones.
🗺️ Canadian Plant Hardiness Zones
Zone 0 is shown in
this colour
on the map below
Canadian Plant Hardiness Zone Map (2014) — Agriculture & Agri-Food Canada / Canadian Forest Service
Canadian zones run 0–9 (coldest to warmest) — a separate system from USDA zones. Browse all Canadian zones →
Technical climate details for Canadian Zone 0
- USDA Zone
- 0
- Last Frost
- early July
- First Frost
- early August
- Frost-Free Days
- 31
- Lettuce Zone Range
- 2b – 9b
- Days to Harvest
- 30–60 days
Frequently Asked Questions
Lettuce bolts quickly in high heat but can be grown in spring and fall even in warm zones.
Canadian Zone 0 is in USDA Hardiness Zone 0 with approximately 31 frost-free days per year.
Lettuce grows in USDA Zones 2b–9b.
Lettuce is beginner-friendly and one of the easier crops to grow.