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Radicchio, Red Treviso

Short Description

Italian heirloom ready for salads, and braising.

Full Description

You may know this heirloom radicchio’s sister, ‘Early Treviso’: both are beloved varieties in Italy. In summer, the long, upright 10–14" heads begin green; once cooler weather comes around, the leaves transition to sensuous deep-red with white midribs and veins. The tender, ever so slightly bitter leaves and heart are delicious raw, in salads, or cooked by braising or sautéing with other vegetables.
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Product properties

Days To Maturity The average number of days from when the plant is actively growing in the garden to the expected time of harvest.

60-80 days

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun

Spread The width of the plant at maturity.

12-16 inches

Height The typical height of this product at maturity.

12-16 inches

Sow Method This refers to whether the seed should be sown early indoors and the seedlings transplanted outside later, or if the seed should be sown directly in the garden at the recommended planting time.

Direct Sow/Indoor Sow

Planting Time The recommended time of the year in which this product should be planted.

Fall, Spring

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  • Radicchio

    Start Indoors Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
    Transplant Transplant When to transplant bulbs or roots in the garden for spring
    Start Outdoors Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
    Start Indoors Fall Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
    Transplant Fall Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
    Start Outdoors Fall Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fall
    S S Succession Planting This means that the plants have multiple harvests in a season
    First Date: Apr-11 - Last Date: May-16
    First Date: Aug-06 - Last Date: Sep-17

How to Sow Radicchio

  • Sow radicchio in early spring 2-3 weeks before the last frost and again in midsummer for a fall harvest.
  • Sow in average, well-worked soil in a sunny location.
  • In rows 12 inches apart, sow seeds evenly and cover with ¼ inch of fine soil. Firm lightly and water gently.
  • Seedlings emerge in 7-14 days depending on soil and weather conditions.
  • Thin gradually to stand 12 inches apart starting when seedlings are about 3 inches high.

How to Grow Radicchio

  • New growth in cool weather produces the small, red, cabbage-like heads.
  • For mid-summer plantings, cut off all leaves above the crown in early fall.
  • Keep weeds under control during the radicchio growing season. Weeds compete with vegetable plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating. Avoid disturbing the soil around the plants when weeding as radicchio is shallow rooted.
  • Keep plants well watered during dry periods to promote rapid, uninterrupted growth. Plants need about 1 inch of rain per week during the growing season. Use a rain gauge to check to see if you need to add water. It’s best to water with a drip or trickle system that delivers water at low pressure at the soil level. If you water with overhead sprinklers, water early in the day so the foliage has time to dry off before evening, to minimize disease problems. Keep the soil moist but not saturated.
  • Monitor radicchio for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.

Radicchio Harvest and Preserving Tips

  • Harvest individual leaves any time.
  • Harvest heads when they are firm to touch, usually 60-65 days after sowing.
  • Radicchio makes a great lettuce substitute in salads. Leaves can be sautéed or steamed as well as eaten raw.
  • The older the head the more bitter the flavor.
  • After a frost, harvest the head, remove and discard any leaves that are frozen on the outside.
  • Store in a perforated plastic bag in the refrigerator for up to 3-4 weeks.

Burpee's Easy to Grow Healing Lettuce Mix

Days To Maturity
60-80 days
Full Sun
12-16 inches
12-16 inches
Sow Method
Direct Sow/Indoor Sow
Planting Time
Fall, Spring
Sow Time
2-4 weeks BLF
12 inches
Life Cycle