🌱 MyLocalPlanting

When to Plant Fennel in Lester Prairie, Minnesota (55354)

Location

Lester Prairie, Minnesota

ZIP Code

55354

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 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

Other Plants for Lester Prairie

Growing Fennel in Zone 4b

Fennel (Foeniculum vulgare) is a popular garden vegetable. In Lester Prairie, Minnesota, 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 Fennel seedlings outdoors around Tuesday, April 21, 2026, about -2 weeks after your last frost date.