Skip to content
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 5b

Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.

📅 When to Plant in Zone 5b

Start Indoors Mar 10
Transplant Out Apr 7
Last Sow Date Aug 23
🌾 Harvest May 22 – Jun 6

Based on Zone 5b's average last frost of early April and first frost of late October.

🌱 Growing Kohlrabi in Zone 5b

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 5 is shown in this colour on the map below
2023 USDA Plant Hardiness Zone Map — zones 1 to 13

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 5b
USDA Zone
5b
Last Frost
early April
First Frost
late October
Frost-Free Days
197
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 5b is in USDA Hardiness Zone 5b with approximately 197 frost-free days per year.
Kohlrabi grows in USDA Zones 3a–9b.
Kohlrabi is beginner-friendly and one of the easier crops to grow.