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Science & Nature • Plant

Radicchio

Radicchio is a cultivated form of chicory (*Cichorium intybus*) grown as a leaf vegetable for its tightly headed, red-and-white leaves and distinctly bitter flavour.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Radicchio is a cultivated form of chicory (Cichorium intybus var. foliosum) grown as a leaf vegetable for its tightly headed, red-and-white leaves and distinctly bitter flavour. It is especially associated with northern Italy, particularly the Veneto region, and is commonly used in salads, grilling, roasting, and Italian dishes.

Description

Radicchio is a leafy vegetable in the chicory group with dark red or purple leaves and prominent white ribs. Its heads may be round or elongated depending on the variety.

Origin and cultivation

The plant is derived from wild chicory native to Europe and became strongly associated with the Veneto region of northern Italy. It is typically grown as a cool-season crop, with autumn and winter production common.

Culinary use

Radicchio is used in Italian and Mediterranean cooking, often in salads, pasta, risotto, soups, and grilled dishes. Its bitterness is a defining feature and is often balanced with sweeter ingredients.

Varieties

Common types include Chioggia, which forms a round head, and Treviso, which is more elongated. Regional Italian varieties are often named for the towns where they developed.

Key facts

  • Radicchio is a cultivated form of chicory, not a cabbage.
  • It is grown for its crisp leaves, which usually form a compact head.
  • The plant is valued for its bitter or tangy flavour, which can mellow when cooked.
  • It is especially linked to Italian cuisine and regional types from Veneto.
  • Radicchio is generally a cool-season crop and develops strong colour in cooler weather.
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Canadian context

Radicchio is available in Canadian produce markets and is grown by some specialty growers as a cool-season crop suitable for cooler climates.

Frequently asked questions

What kind of plant is radicchio?
Radicchio is a cultivated chicory, grown as a leafy vegetable in the Asteraceae family.
Is radicchio the same as red cabbage?
No. It can look similar, but radicchio is botanically a chicory, not a cabbage.
Where does radicchio come from?
It is associated with Europe and especially with the Veneto region of northern Italy.
What does radicchio taste like?
Radicchio has a bitter, tangy flavour that often becomes milder when cooked.
How is radicchio used in cooking?
It is eaten raw in salads or cooked by grilling, roasting, or adding to pasta, risotto, and soups.

References

  1. Plant Identifier — https://plantidentifier.com/encyclopedia/radicchio
    Supports: Radicchio as a cultivated form of common chicory, cool-season crop, Veneto association, and distinction from cabbage.
  2. UC Small Farms Network — https://www.ucanr.edu/program/uc-small-farms-network/radicchio-specialty-crop
    Supports: Radicchio as a red, broadleaf, heading form of chicory in the Asteraceae family, widely produced in Italy.
  3. Taylor Farms — https://www.taylorfarms.com/vegetable-type/garden-favorites/radicchio/
    Supports: Scientific name, family, cool-season timing, and common varieties Chioggia and Treviso.
  4. Edible Monterey Bay — https://ediblemontereybay.com/online-magazine/spring-2021/radicchio/
    Supports: Veneto origin and historical cultivation in the 15th century, plus regional naming of varieties.
  5. EatingWell — https://www.eatingwell.com/article/7675902/what-is-radicchio/
    Supports: Description of taste, common varieties, and culinary uses.