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When to Plant Fennel in Coal Center, Pennsylvania (15423)

Location

Coal Center, Pennsylvania

ZIP Code

15423

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, March 18, 2026
Transplant Outdoors Wednesday, April 1, 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 Coal Center

Growing Fennel in Zone 6b

Fennel (Foeniculum vulgare) is a popular garden vegetable. In Coal Center, Pennsylvania, which is in USDA Hardiness Zone 6b, you should start seeds indoors around Wednesday, March 18, 2026.

Your average last frost date is Wednesday, April 15, 2026. Plan to transplant your Fennel seedlings outdoors around Wednesday, April 1, 2026, about -2 weeks after your last frost date.