When to Plant Fennel in Davis, South Dakota (57021)
Location
Davis, South Dakota
ZIP Code
57021
USDA Zone
5a
Last Frost
Sunday, May 10, 2026
📅 Planting Calendar
Start Seeds Indoors Sunday, April 12, 2026
Transplant Outdoors Sunday, April 26, 2026
Pro Tip: Start Fennel seeds indoors 4 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Foeniculum vulgare
Days to Maturity 80 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
🤝 Good Companions
Dill
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Growing Fennel in Zone 5a
Fennel (Foeniculum vulgare) is a popular garden vegetable. In Davis, South Dakota, which is in USDA Hardiness Zone 5a, you should start seeds indoors around Sunday, April 12, 2026.
Your average last frost date is Sunday, May 10, 2026. Plan to transplant your Fennel seedlings outdoors around Sunday, April 26, 2026, about -2 weeks after your last frost date.