Cichorium intybus ‘Rossa Di Treviso’ — Red Treviso Radicchio | Winter’s Most Elegant Bitter

Description

Cichorium intybus ‘Rossa di Treviso’ is a striking Italian heirloom variety of radicchio prized for its deep red, elongated leaves with crisp white ribs. This is not a vegetable—it’s a culinary obsession waiting to bloom in your garden.

The species known as Cichorium Intybus has been around since the dawn of time as wild chicory, but continuous selection transformed it into the prized Radicchio Rosso di Treviso. Its presence in the Veneto area can be traced to the 16th century, appearing in paintings like Leandro Da Ponte’s “The Wedding at Cana.” By 1900, Radicchio Rosso di Treviso had become enough of a specialty that exhibitions were being held to celebrate its qualities. What began as a humble field chicory became the vegetable that defined winter dining in northeastern Italy—and now you can grow this legend yourself from seed.

**Where the magic lives: The culinary transformation.** The leaves have a pleasantly bitter flavor that mellows when grilled, roasted, or sautéed. Its flavor starts with gentle bitterness that quickly turns to delicate sweetness, especially when cooked. Italians embrace this balance. Pair it with olive oil, aged balsamic, cheese, or nuts, and it transforms dishes with complexity and harmony. Shred it raw into salads where it adds color and complexity. Grill it until the leaves char and caramelize—the bitterness becomes almost honeyed. Braise it with risotto, toss it into pasta, or simply pan-fry it with olive oil and watch the leaves wilt into something tender and luxurious. Italian tradition: put mozzarella and Parma ham on the harvested radicchio heart and grill until the ham curls up like the brim of a policeman’s cap. Drizzle with olive oil and serve with bread. Beyond taste, Radicchio di Treviso Tardivo is rich in antioxidants, fiber, vitamin K, and essential minerals. It supports digestion, heart health, and overall wellness.

**How to grow your Italian winter jewel.** This cool-season crop thrives in full sun and fertile, well-drained soil. It develops its vibrant red color in cooler temperatures, typically maturing in late fall or early winter. Easy to cultivate and undemanding for soil, however, it requires a constant water supply, avoiding water stagnation, as well as good soil processing. Sow from April to September and thin seedlings to 25-30cm apart. It is very resistant to cold and can be harvested in the middle of winter. Radicchio also grows well in containers, pots, or raised beds. The red leaves are very showy and it grows well under leaves of other plants in partial shade. The cold is your friend—the first frosts trigger the plant to sweeten and intensify its signature coloring. For autumn crops, the flavor is changed predominantly by the onset of cold weather (the colder, the mellower), which also initiates the heading and reddening process.

**This is the vegetable that waitlists happen for.** When you grow ‘Rossa Di Treviso’, you’re not just growing food—you’re cultivating a taste of Italian culinary tradition, a vegetable so prized it’s protected by geographical designation and celebrated in festivals every November. Both Precoce and Tardico now enjoy IGP (Indicazione Geografica Protetta) status, meaning they can only be sold with these names if produced around Treviso under supervision of the Consorzio. Plant these seeds, tend them through the cool season, and when your first harvest arrives, you’ll understand why Marcella Hazan called the Tardivo “the most magnificent vegetable grown.” Your table will never be the same.