How to Grow Nuit d'Or

Nuit d'Or

Solanum lycopersicum 'Nuit d'Or'

vegetable

Nuit d'Or is a French heirloom tomato variety prized for its deep, dark burgundy-black color and rich, complex flavor profile. This indeterminate vine produces medium-sized fruits (3-4 oz) with meaty, sweet-tart flesh and minimal seeds. It's a favorite among specialty growers and tomato enthusiasts for its striking appearance and superior taste.

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Example Nuit d'Or timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Nuit d'Or

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Nuit d'Or

    Around Jul 1

    ≈ 75 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Nuit d'Or dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 8+ hours daily (more sun intensifies dark coloring)
💧
Water: Consistent moisture, 1-1.5 inches weekly; water deeply at soil level to avoid fungal issues. Increase watering during fruit development. Avoid overhead watering.
📏
Spacing: 24 inches
📅
Days to maturity: 75-85 days from transplant
🌱
Planting depth: 0.25 inches for seeds; transplant deeply (bury stem up to first true leaves)

Soil

Type: Well-draining, fertile loamy soil enriched with organic matter
pH: 6.0-6.8
Amendments:
Compost or aged manure Balanced slow-release fertilizer Bone meal for phosphorus Epsom salt (magnesium) for fruit quality

Growing Zones

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Thrives in zones 5-9; grows as annual in cooler zones, perennial in warm zones

3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a

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Growth Stages

1

Seedling

2-3 weeks

Small green cotyledons emerge, followed by true leaves with typical tomato serration

Provide bright light to prevent leggy growth; keep soil consistently moist but not waterlogged; maintain 70-75°F

2

Vegetative

3-4 weeks after transplant

Plant develops multiple sets of true leaves and establishes strong root system; no flowers yet

Harden off seedlings before transplanting; plant deeply; provide sturdy support/cage; fertilize with balanced formula every 2-3 weeks

3

Flowering

3-4 weeks

Yellow flowers appear in clusters along the main stem and side branches; plant grows vigorously

Continue support structure; ensure consistent watering to prevent flower drop; switch to lower-nitrogen fertilizer to encourage fruiting

4

Fruiting

4-5 weeks

Small green fruits develop from flowers; fruit begins to enlarge and gradually darkens from green to deep burgundy-black

Maintain consistent watering and mulch to regulate moisture; prune excessive foliage to allow sun penetration for color development; stake heavily as fruit weighs down branches

5

Harvest

Ongoing through frost

Fruits reach full 3-4 oz size with deep, nearly black burgundy color and slight give when gently squeezed

Harvest when color is fully developed but fruit still has slight firmness; allow to ripen on plant for best flavor; pick ripe fruits regularly to encourage continued production

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel Brassicas (cabbage, broccoli) Potatoes Walnut trees

Common Pests

  • Hand-pick; encourage parasitic wasps; use Bacillus thuringiensis (Bt); inspect plants daily

  • Spray with water to dislodge; neem oil; sulfur dust; maintain humidity

  • Yellow sticky traps; insecticidal soap; neem oil; reflective mulch

  • Choose resistant varieties; improve drainage; remove infected plants; crop rotation; stake to improve air flow

  • Remove lower leaves; maintain air circulation; water at soil level; fungicide (copper or chlorothalonil); mulch

Uses

🍳

Fresh eating & slicing

Culinary

Exceptional fresh tomato with complex, sweet-tart flavor profile and meaty texture. The dark color makes striking presentations in salads and plated dishes. Best enjoyed fresh within days of harvest. [source]

🍳

Sauce & cooking

Culinary

Produces concentrated, rich tomato sauce with deep color and balanced acidity. The minimal seed content makes processing simpler. Ideal for Burgundy wines-inspired tomato preparations. [source]

🏠

Seed saving

Household

Open-pollinated heirloom variety that produces viable, true-to-type seeds for next season. Collect seeds from fully ripe fruits, ferment, wash, and dry for storage. [source]

🍳

Display & exhibition

Culinary

The striking deep burgundy-black color makes Nuit d'Or a show-stopper at farmers markets, food events, and garden exhibitions. Color is a key characteristic sought by specialty growers. [source]

💊

Lycopene antioxidant content

Medicinal

Dark-colored tomatoes like Nuit d'Or contain high concentrations of lycopene and other antioxidants. These compounds are associated with cardiovascular and anti-inflammatory benefits. [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 fruit is deep burgundy-black and yields to gentle pressure (typically 75-85 days after transplant). Nuit d'Or develops its signature dark color best when fully ripe on the vine. Pick regularly to encourage continued production. For peak flavor, allow 2-3 days of ripening after picking if harvested slightly early. Late-season fruits can be picked at breaker stage (first color showing) and ripened indoors.

Fun Facts

  • 🌱 Nuit d'Or translates to 'Night of Gold' in French, a poetic reference to its dark burgundy exterior combined with the golden-orange flesh within when sliced.
  • 🌱 The deep, nearly black color develops through high concentrations of anthocyanins and carotenoids—the same pigments that make blueberries and beets deeply colored.
  • 🌱 This variety is indeterminate, meaning it grows continuously throughout the season and can reach 6-8 feet tall, producing fruit until killed by frost.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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