Can You Grow Kohlrabi in Zone 3a?
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 Zone 3a
Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.
📅 When to Plant in Zone 3a
Start Indoors
Apr 17
Transplant Out
May 15
Last Sow Date
Jul 17
🌾 Harvest
Jun 29 – Jul 14
Based on Zone 3a's average last frost of mid-May and first frost of mid-September.
🌱 Growing Kohlrabi in Zone 3a
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
🗺️ USDA Plant Hardiness Zones
Zone 3 is shown in
this colour
on the map below
2023 USDA Plant Hardiness Zone Map — public domain. USDA Agricultural Research Service
USDA zones run 1a–13b (26 half-zones). Each full zone above covers both the a and b half-zones. Browse all US zones →
Technical climate details for Zone 3a
- USDA Zone
- 3a
- Last Frost
- mid-May
- First Frost
- mid-September
- Frost-Free Days
- 123
- 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.
Zone 3a is in USDA Hardiness Zone 3a with approximately 123 frost-free days per year.
Kohlrabi grows in USDA Zones 3a–9b.
Kohlrabi is beginner-friendly and one of the easier crops to grow.