Can You Grow Leek in Canadian Zone 9?
Quick Answer:
✅ Yes — Leeks grow well here — cold-hardy and can be harvested into late autumn.
✅ Yes
Leek grows well in Canadian Zone 9
Leeks grow well here — cold-hardy and can be harvested into late autumn.
📅 When to Plant in Canadian Zone 9
Start Indoors
Jan 1
Transplant Out
Jan 15
Last Sow Date
Jul 18
🌾 Harvest
Apr 25 – Jun 14
Based on Canadian Zone 9's average last frost of mid-January and first frost of mid-December.
🌱 Growing Leek in Canadian Zone 9
Start indoors in late winter — leeks need a very long season. Transplant deeply to blanch stems. Harvest after first frosts — cold improves flavour. Very cold-hardy surviving to -10°C.
🪴 Container: 5+ gal pot❄️ Frost Tolerant
🗺️ Canadian Plant Hardiness Zones
Zone 9 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 9
- USDA Zone
- 9
- Last Frost
- mid-January
- First Frost
- mid-December
- Frost-Free Days
- 334
- Leek Zone Range
- 3a – 9b
- Days to Harvest
- 100–150 days
Frequently Asked Questions
Leeks grow well here — cold-hardy and can be harvested into late autumn.
Canadian Zone 9 is in USDA Hardiness Zone 9 with approximately 334 frost-free days per year.
Leek grows in USDA Zones 3a–9b.
Leek needs moderate care and attention to thrive.