Can You Grow Kohlrabi in Zone 6b?
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 6b
Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.
📅 When to Plant in Zone 6b
Start Indoors
Feb 15
Transplant Out
Mar 15
Last Sow Date
Sep 16
🌾 Harvest
Apr 29 – May 14
Based on Zone 6b's average last frost of mid-March and first frost of mid-November.
🌱 Growing Kohlrabi in Zone 6b
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 6 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 6b
- USDA Zone
- 6b
- Last Frost
- mid-March
- First Frost
- mid-November
- Frost-Free Days
- 244
- 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 6b is in USDA Hardiness Zone 6b with approximately 244 frost-free days per year.
Kohlrabi grows in USDA Zones 3a–9b.
Kohlrabi is beginner-friendly and one of the easier crops to grow.