When to Plant Kohlrabi in Prescott, Wisconsin (54021)
Location
Prescott, Wisconsin
ZIP Code
54021
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Planting Calendar
Start Seeds Indoors Tuesday, April 7, 2026
Transplant Outdoors Tuesday, April 21, 2026
Pro Tip: Start Kohlrabi seeds indoors 4 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Brassica oleracea var. gongylodes
Days to Maturity 55 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Kohlrabi in Zone 4b
Kohlrabi (Brassica oleracea var. gongylodes) is a popular garden vegetable. In Prescott, Wisconsin, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, April 7, 2026.
Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Kohlrabi seedlings outdoors around Tuesday, April 21, 2026, about -2 weeks after your last frost date.