Can You Grow Kohlrabi in Canadian Zone 3?
Quick Answer:
✅ Yes — Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.
✅ Yes
Kohlrabi grows well in Canadian Zone 3
Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.
📅 When to Plant in Canadian Zone 3
Start Indoors
Apr 17
Transplant Out
May 15
Last Sow Date
Jul 22
🌾 Harvest
Jun 29 – Jul 14
Based on Canadian Zone 3's average last frost of mid-May and first frost of late September.
🌱 Growing Kohlrabi in Canadian Zone 3
Start indoors 4-6 weeks before last frost or direct sow. Thin to 6-8 inches. Harvest when bulbs are 2-3 inches diameter — bigger gets woody. Great for fall crops too.
🪴 Container: 5+ gal pot💧 Hydroponic OK❄️ Frost Tolerant
🗺️ Canadian Plant Hardiness Zones
Zone 3 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 3
- USDA Zone
- 3
- Last Frost
- mid-May
- First Frost
- late September
- Frost-Free Days
- 127
- Kohlrabi Zone Range
- 3a – 9b
- Days to Harvest
- 45–60 days
Frequently Asked Questions
Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.
Canadian Zone 3 is in USDA Hardiness Zone 3 with approximately 127 frost-free days per year.
Kohlrabi grows in USDA Zones 3a–9b.
Kohlrabi is beginner-friendly and one of the easier crops to grow.