How to Grow La Rouge
Wikimedia Commons
La Rouge
Solanum lycopersicum 'La Rouge'
vegetableLa Rouge is a French heirloom tomato variety known for its deep red color and rich, complex flavor. This indeterminate (vining) tomato produces medium-sized fruits with excellent taste and is highly valued by home gardeners and chefs alike.
When should you plant La Rouge in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example La Rouge timeline · Pittsburgh, PA (Zone 6b)
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Plant La Rouge
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 La Rouge
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact La Rouge dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; can be grown in zones 3-10 with appropriate timing
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Seedling (0-3 weeks)
2-3 weeksTiny plants with seed leaves and first true leaves emerging
Keep soil consistently moist but not waterlogged. Provide bright light (14-16 hours daily under grow lights). Maintain 70-75°F. Thin seedlings to strongest plant if multiple sprout.
Transplant Ready (3-6 weeks)
3-4 weeksYoung plants 2-4 inches tall with 2-3 sets of true leaves
Pot up into 4-inch containers with rich potting mix. Gradually acclimate to outdoor conditions if moving outdoors. Maintain 65-75°F. Begin low-nitrogen fertilizing.
Vegetative Growth (6-12 weeks from planting)
4-8 weeksRobust plants 12-24 inches tall with vigorous foliage but no flowers yet
Harden off before transplanting outdoors after last frost. Plant deep, removing lower leaves. Install sturdy stakes or cages early. Begin regular fertilizing with balanced formula.
Flowering & Fruiting (8-16 weeks from planting)
6-10 weeksYellow flower clusters appear; small green fruits develop and gradually enlarge
Prune suckers on indeterminate varieties to direct energy to fruit production. Maintain consistent watering to prevent blossom end rot and fruit cracking. Switch to lower nitrogen, higher phosphorus/potassium fertilizer.
Harvest (16+ weeks from planting)
4-8 weeks ongoingFruits turn deep red and fully ripen on the vine; flavor peaks
Pick when fully colored but still slightly yielding to gentle pressure. Harvest in morning when fruit is coolest. Continue watering and support vines. Pick regularly to encourage continued production.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Handpick large caterpillars in early morning. Encourage parasitic wasps. Use Bacillus thuringiensis (Bt) for severe infestations. Remove and destroy affected plant parts.
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Use reflective mulches. Apply insecticidal soap or neem oil. Introduce beneficial insects like ladybugs. Avoid excessive nitrogen fertilizer which promotes tender growth.
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Remove lower leaves to improve air circulation. Water at soil level only. Apply copper or sulfur fungicide if needed. Ensure proper spacing and stake support.
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Plant in well-draining soil. Avoid overhead watering. Remove infected plant parts immediately. Use copper-based fungicides as preventative. Improve air circulation.
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Spray plants with strong water spray. Use insecticidal soap or neem oil. Maintain adequate humidity. Keep stress on plants minimized through proper watering.
Uses
Premium Fresh Eating & Cooking
CulinaryLa Rouge is prized for its complex, rich flavor and meaty texture, making it ideal for fresh salads, slicing, and gourmet cooking. It's excellent for sauces, soups, and any application where superior tomato flavor is desired. [source]
Sauce & Paste Production
CulinaryWith its concentrated flavors and moderate acidity, La Rouge is excellent for making homemade tomato sauce, passata, and tomato paste that captures the authentic taste of French cuisine. [source]
Nutritional & Antioxidant Benefits
MedicinalLike all red tomatoes, La Rouge is rich in lycopene, a powerful antioxidant linked to cardiovascular health and cancer prevention. It also provides vitamin C, potassium, and other beneficial compounds. [source]
Seed Saving
HouseholdAs a heirloom open-pollinated variety, La Rouge can be saved for seeds year after year, allowing gardeners to maintain their favorite strain and reduce seed costs over time. [source]
Garden Heritage & Preservation
CraftGrowing La Rouge connects gardeners to French agricultural heritage and supports biodiversity. It's a popular choice for gardeners interested in preserving traditional crop varieties and maintaining genetic diversity. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
La Rouge typically produces ripe fruit 70-85 days after transplanting. Harvest when fruits are deep red and slightly yield to gentle pressure—they should not be rock-hard. Pick in the morning when temperatures are cooler. The vine will continue producing until first frost. For storage, pick fully ripe fruits and use within 1-2 weeks. Vine-ripened tomatoes have superior flavor compared to those ripened off the vine, so allow full ripening on the plant when possible.
Fun Facts
- 🌱 La Rouge is a treasured French heirloom variety that has been preserved and cultivated for generations, making it part of Europe's agricultural heritage.
- 🌱 The name 'La Rouge' simply means 'The Red' in French, reflecting its deep crimson color and the French emphasis on flavor and quality in tomato cultivation.
- 🌱 Indeterminate varieties like La Rouge can grow 6-10 feet tall or more and will continue producing fruit throughout the growing season until killed by frost, unlike determinate bush tomatoes that produce all fruit at once.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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