Japanese Black Trifele Tomato (Solanum lycopersicum 'Japanese Black Trifele')

Japanese Black Trifele Tomato

Solanum lycopersicum 'Japanese Black Trifele'

Deep purple-black fruits carry rich, sweet-tart flavor—heritage heirloom tomato. Indeterminate vining edible plant; common name: Japanese Black Trifele Tomato.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full direct sunlight for 6–8 hours daily for optimal fruit set; tolerate partial shade during midday heat in extreme summer temperatures
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Watering Water deeply when the top 5 cm of soil is dry; avoid overhead watering to reduce risk of fungal foliar diseases
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Temperature Optimal growth temperature 21–27℃; avoid temperatures below 10℃ which stunt seedling and fruit development
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Characteristics

  • Leaf: Compound pinnate leaves with serrated margins, fuzzy medium-green foliage
  • Fruit: Oval, dusky purple-black with green shoulders when fully ripe; 50–70 g per fruit
  • Stem: Vining, hairy stems with small tendrils for climbing and anchorage
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Horticulturist's Insider Field Notes (No AI Fluff)

The Golden 'Finger Test' Rule

Never water on a strict calendar. Stick your index finger 2 inches into the soil. If it feels cool and damp, wait 2–3 days. If bone dry, water thoroughly until it drains from the bottom holes.

Empty the Saucer After 20 Minutes

The #1 houseplant killer is water sitting in the catch tray. Stagnant runoff water starves roots of oxygen and causes root rot.

Turn the Pot Every 2 Weeks

Houseplants naturally lean toward the nearest window light. Give the pot a quarter-turn biweekly to maintain balanced, symmetrical architecture.

Wipe the Dust Away

Dust on leaves acts like a heavy sunshade. Gently wipe broad foliage with a damp cloth monthly to maximize photosynthesis and air purification.

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Care Guide

Watering

Keep soil consistently moist but not waterlogged; water early in the morning to minimize evaporation

Fertilization

Feed every 2 weeks with balanced organic fertilizer. Avoid over-fertilizing with nitrogen to prevent excessive foliage growth at the expense of fruit production

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute the tea 1:20 for root drenching; discard solid peels to avoid attracting pests
Pruning
  • Remove suckers (side shoots between main stems and branches) to direct energy to main vines and fruit production
  • Trim yellowing or diseased leaves to improve airflow and reduce disease risk
  • Tie vining stems to stakes or a trellis to support heavy fruit clusters and prevent breakage
  • Prune top growth in late summer to encourage ripening of remaining green fruits before frost
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Pet & Human Toxicity & Emergency Guide

🟢 Pet-Safe (Non-Toxic to Cats & Dogs)

Pet Safety Verified: According to clinical veterinary databases (ASPCA), Japanese Black Trifele Tomato (Solanum lycopersicum 'Japanese Black Trifele') is non-toxic to both cats and dogs, making it an excellent choice for pet-friendly homes.

Pet Tolerance

Leaves, stems, and flowers contain no systemic toxins or hazardous oxalates; safe for curious puppies and kittens.

Mild Fiber Sensitivity

While non-toxic, excessive consumption of fibrous leaves may cause mild, temporary stomach upset or regurgitation.

Recommended Placement

Safe for low tables, living rooms, and active pet environments.

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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Japanese Black Trifele Tomato (Solanum lycopersicum 'Japanese Black Trifele'):

Yellowing Leaves

Most commonly caused by overwatering or poor drainage. Ensure topsoil dries out between waterings and check for root ventilation.

Brown or Crispy Leaf Tips

Low ambient humidity, hard tap water minerals, or direct midday sunburn. Increase humidity and use filtered water.

Drooping or Wilting Foliage

Indicates dehydration or root damage from prolonged waterlogging. Inspect soil moisture and root firmness.

Common Pests (Spider Mites, Aphids)

Dry indoor air encourages pests. Wipe leaves with a damp cloth and treat with insecticidal soap or neem oil.

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Propagation & Repotting Guide

  • Taking Cuttings: During active spring or summer growth, take a healthy 4–6 inch cutting just below a node using clean shears.
  • Rooting Medium: Place cuttings in fresh water or moist perlite mix in bright, indirect light; refresh water weekly.
  • Potting Up: Transplant into well-draining potting mix once roots reach 2 inches in length (typically 3–5 weeks).
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Seasonal Care Calendar

  • Spring & Summer (Active Growth): Water thoroughly as topsoil dries; apply diluted balanced fertilizer monthly; encourage steady growth.
  • Autumn (Transition): Gradually reduce watering frequency as daylight hours shorten; discontinue fertilization.
  • Winter (Dormancy): Water sparingly only when soil is mostly dry; protect from cold window drafts; keep in warm room.
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Frequently Asked Questions

How often should I water my Japanese Black Trifele Tomato?

Water thoroughly when the top 1–2 inches of soil feel dry. In active growth (spring/summer), water every 1–2 weeks; reduce significantly in winter.

Where is the best indoor location for Japanese Black Trifele Tomato?

Position in bright, filtered indirect light (e.g., near an east or south-facing window with sheer curtains). Avoid harsh direct midday sun.

Is Japanese Black Trifele Tomato toxic to pets?

ASPCA: Leaves and stems contain solanine; ingestion may cause vomiting, diarrhea, or lethargy; ripe fruit is safe

When should I repot my Japanese Black Trifele Tomato?

Repot every 1–2 years in spring when roots outgrow the drainage holes or the soil depletes nutrients.

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Garden Uses & Culture

Culture: Heritage heirloom cultivar prized for its unique dark fruit color and complex, sweet-tart flavor profile

Usage: Edible fruit for fresh eating, gourmet salads, and homemade sauces; ornamental foliage and dark fruit for garden display

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