How to grow radicchios

Cichorium intybus · asteraceae family · annual crop

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

Growing basics

Radicchio is a cool-season crop, started from seed in the garden or transplanted.

Seeds germinate once soil reaches about 50°F.

Plants bolt or decline once sustained daytime highs reach 75°F.

Varieties in the library run 80 to 88 days to maturity.

Grows best in full sun.

Frost-hardy: keeps going through freezes.

Space plants 8 to 10 inches apart.

Sources

4 radicchios in the library

Palla Rossa · Treviso · Castelfranco · Rossa di Verona

Each has a full cited page in the library.

Pests and diseases we cover

Aphid
Slug
Bottom rot
Downy mildew (lettuce)
Tipburn

Identification and treatment for each, with photos, in the library.

Row & Bed covers 4 radicchio varieties, each with a cited care timeline and fertilization schedule, identification and treatment for the 2 pests and 3 diseases that reach them, 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.