When to Plant Kohlrabi in Montrose, California (91021)
Location
Montrose, California
ZIP Code
91021
USDA Zone
10a
Last Frost
Monday, January 25, 2027
📅 Planting Calendar
Start Seeds Indoors Monday, December 28, 2026
Transplant Outdoors Monday, January 11, 2027
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 10a
Kohlrabi (Brassica oleracea var. gongylodes) is a popular garden vegetable. In Montrose, California, which is in USDA Hardiness Zone 10a, you should start seeds indoors around Monday, December 28, 2026.
Your average last frost date is Monday, January 25, 2027. Plan to transplant your Kohlrabi seedlings outdoors around Monday, January 11, 2027, about -2 weeks after your last frost date.