Skip to content

How to grow fennel

Foeniculum vulgare · apiaceae family · annual crop

Fennel — hero (AI-generated reference image)
AI-generated reference image. Have a photo of this plant? Suggest one below.

Growing basics

Fennel is a cool-season crop, usually direct-sown in the garden.

Seeds germinate once soil reaches about 50°F.

Varieties in the library run 75 to 90 days to maturity.

Grows best in full sun.

Tolerates a light frost.

Space plants 8 to 10 inches apart.

Sources

3 varieties of fennel in the library

Solaris · Florence Fennel · Trieste

Each has a full cited page in the library.

Row & Bed covers 3 fennel varieties, each with a cited care timeline and fertilization schedule, and planting windows worked out for your ZIP.

Set up your garden

See something that does not match your garden? Write to andy@rowandbed.com.