Can You Grow Onion in Canadian Zone 7?
Quick Answer:
✅ Yes — Onions grow well here — plant sets or transplants in early spring for a summer harvest.
✅ Yes
Onion grows well in Canadian Zone 7
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
📅 When to Plant in Canadian Zone 7
Start Indoors
Jan 18
Transplant Out
Mar 15
Last Sow Date
Jul 18
🌾 Harvest
Jun 13 – Jul 13
Based on Canadian Zone 7's average last frost of mid-March and first frost of mid-November.
🌱 Growing Onion in Canadian Zone 7
Growing from sets is easiest for beginners. Plant in early spring — onions are frost-tolerant. Day-length sensitive — choose short-day long-day or day-neutral varieties based on your latitude.
🪴 Container: 5+ gal pot🏠 Indoor Viable❄️ Frost Tolerant
🗺️ Canadian Plant Hardiness Zones
Zone 7 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 7
- USDA Zone
- 7
- Last Frost
- mid-March
- First Frost
- mid-November
- Frost-Free Days
- 244
- Onion Zone Range
- 2a – 9b
- Days to Harvest
- 90–120 days
Frequently Asked Questions
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Canadian Zone 7 is in USDA Hardiness Zone 7 with approximately 244 frost-free days per year.
Onion grows in USDA Zones 2a–9b.
Onion needs moderate care and attention to thrive.