How to Grow Rouge de Trévise
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Rouge de Trévise
Cichorium intybus var. foliosum
vegetableRouge de Trévise is a distinctive Italian heirloom radicchio with deep burgundy-red leaves and white veins, forming compact, slightly elongated heads. It has a pleasantly bitter flavor that mellows slightly with cooking and is prized in Italian cuisine. This cool-season crop requires specific timing and temperature conditions to develop its characteristic deep coloring.
When should you plant Rouge de Trévise in your zone?
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Example Rouge de Trévise timeline · Pittsburgh, PA (Zone 6b)
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Plant Rouge de Trévise
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Rouge de Trévise
Around Jul 16≈ 90 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Rouge de Trévise dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8; performs best in cool fall conditions
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Seedling
2-3 weeksTiny green cotyledons emerge, developing into small true leaves with serrated edges
Keep soil consistently moist. Maintain 65-70°F for germination. Provide bright light immediately after sprouting to prevent leggy seedlings.
Vegetative/Rosette
4-6 weeksPlant develops 4-6 true leaves forming a loose rosette; green foliage predominates
Thin seedlings or space transplants 10 inches apart. Keep consistently watered. Pinch off any flower shoots. Apply balanced fertilizer every 3 weeks.
Head Formation
3-4 weeksLeaves begin to curl inward, forming a loose head; very slight coloring may appear
Maintain consistent moisture. Ensure cooler temperatures (below 70°F) for optimal color development. Reduce nitrogen fertilizer if applied.
Color Development & Maturation
3-4 weeksLeaves turn from green to deep burgundy-red with prominent white veins; head becomes more compact and dense
This stage requires cool temperatures (50-65°F); late-season plantings harvested after light frost develop the most vibrant coloring. Maintain steady moisture.
Harvest Ready
Variable; extends until hard frostFully colored deep red head with white veins, firm to touch, leaves tightly packed
Harvest when heads feel solid. Can tolerate light frosts which enhance color and reduce bitterness. Store at 32-50°F for 2-3 weeks.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers on young plants. Spray with neem oil or spinosad if infestation occurs. Encourage beneficial insects.
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Spray with strong water stream to dislodge. Apply insecticidal soap or neem oil. Introduce ladybugs or lacewings.
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Remove and destroy affected leaves promptly. Use row covers. Spinosad spray for severe infestations.
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Hand-pick in early morning or evening. Create copper barriers. Use diatomaceous earth around plants. Beer traps.
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Ensure good air circulation. Avoid overhead watering. Apply sulfur or potassium bicarbonate spray if needed.
Uses
Salads & Fresh Preparations
CulinaryThe tender inner leaves of Rouge de Trévise are excellent in mixed green salads, providing an attractive burgundy color and pleasantly bitter flavor. The white veining adds visual appeal to composed salads and cheese boards. [source]
Grilled & Roasted Dishes
CulinaryQuartered or halved heads hold together beautifully when grilled or roasted, developing a caramelized, slightly sweet exterior while the bitterness mellows. Often prepared with olive oil, garlic, and balsamic vinegar in traditional Italian cuisine. [source]
Risotto & Pasta
CulinaryFinely shredded Rouge de Trévise adds striking color and depth to risotto, pasta dishes, and Italian rice preparations. The mild bitterness complements creamy sauces and soft cheeses. [source]
Digestive & Nutritional Support
MedicinalRadicchio contains inulin and beneficial compounds that support digestive health and liver function. Rich in antioxidants, vitamin K, and polyphenols that support overall wellness. [source]
Natural Dye Source
HouseholdThe deep red leaves and roots of Rouge de Trévise can be used to create natural dyes for fabric and craft projects, producing rich burgundy and red hues. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when heads are firm and fully colored, typically 90-120 days after transplanting. Cut the entire head just above soil level with a sharp knife. Best flavor develops after a light frost (28-32°F), which reduces bitterness and enhances color. Harvest in the morning for maximum crispness. Heads can remain in the garden through light freezes; cut before hard frost. Store in refrigerator at 32-40°F for 2-3 weeks in perforated plastic bags to maintain humidity.
Fun Facts
- 🌱 Rouge de Trévise is named after the region of Treviso in northeastern Italy, where it has been grown for centuries and is considered a regional delicacy with protected status.
- 🌱 The distinctive red coloring and white veining only fully develop in cool fall temperatures; heads grown in warm weather will remain mostly green and lack the characteristic burgundy hue.
- 🌱 This radicchio can tolerate light frosts and actually improves in flavor and appearance after being touched by cold, as the plant converts sugars as a natural antifreeze.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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