When to Plant Fennel in Biwabik, Minnesota (55708)

Location

Biwabik, Minnesota

ZIP Code

55708

USDA Zone

Last Frost

Wednesday, May 20, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, April 22, 2026

Transplant Outdoors Wednesday, May 6, 2026

Pro Tip: Start Fennel seeds indoors 4 weeks before your last frost date, then transplant outdoors around Wednesday, May 6, 2026.

🌿 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

Ready to Plant Fennel in Biwabik?

Get your seeds now so they're ready by Wednesday, April 22, 2026.

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🤝 Good Companions

Dill

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Growing Fennel in Zone 3b

Fennel (Foeniculum vulgare) is a popular garden vegetable. In Biwabik, Minnesota, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, April 22, 2026.

Your average last frost date is Wednesday, May 20, 2026. Plan to transplant your Fennel seedlings outdoors around Wednesday, May 6, 2026, about -2 weeks after your last frost date.