How to Grow Fennel

Ready to grow Fennel?

Order seeds from trusted suppliers.

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🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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Find Your Fennel Planting Dates

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🌿 Plant Overview

Scientific Name Foeniculum vulgare

Category vegetable

Days to Maturity 80 days

Starting Method Start Indoors

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

🌱

Germination

7-14 days

Ready to Grow Fennel?

Find quality seeds from trusted suppliers.

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🤝 Good Companions

Dill

Fennel Planting Calendar by Zone

Fennel Planting Calendar by State

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Frequently Asked Questions

When should I plant Fennel? +

Start Fennel seeds indoors 4 weeks before your last frost date, then transplant outdoors -2 weeks after the last frost. Use the search on this page to find exact dates for your ZIP code or city.

How long does Fennel take to grow? +

Fennel typically matures in about 80 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Should I start Fennel indoors or direct sow? +

Fennel should be started indoors 4 weeks before the last frost date. This gives seedlings time to establish before being transplanted outside after frost danger has passed.

How much sun does Fennel need? +

Fennel requires full sun to thrive.

How much water does Fennel need? +

Fennel has regular water needs. Consistent moisture is important especially during germination and early growth.

About Fennel

Fennel is allelopathic to most garden plants, inhibiting growth, causing to bolt, or actually killing many plants

Expect your Fennel to be ready for harvest in approximately 80 days from planting.

Use the search above or browse by zone or state to find the perfect planting dates for your location.