Black Krim Tomato (Solanum lycopersicum 'Black Krim')

Black Krim Tomato

Solanum lycopersicum 'Black Krim'

Deep purple-black fruit carries rich, smoky flavor. Heirloom determinate tomato cultivar; common name: Black Krim.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full direct sunlight for 6–8 hours daily; tolerate partial shade but reduced fruit yield may occur
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Watering Water deeply when the top 5 cm of soil is dry; avoid wetting foliage to prevent fungal disease development
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Temperature Optimal growth at 20–28℃; temperatures below 10℃ will stunt growth and delay fruiting
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Characteristics

  • Leaf: Dark green, compound pinnate leaves with serrated margins
  • Fruit: Round, flattened beefsteak-style fruit with deep purple-black skin and green shoulders when unripe
  • Stem: Hairy, green stems with small spines along petioles
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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 to support fruit development; avoid waterlogging

Fertilization

Feed every 2 weeks with balanced, diluted fertilizer. Avoid over-fertilizing with nitrogen, which promotes excessive foliage growth over fruit production

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to boost fruit set and flavor
Pruning
  • Remove suckers (side shoots) to direct energy toward fruit production
  • Prune lower leaves to improve airflow and reduce fungal disease risk
  • Trim yellowing or diseased foliage promptly to prevent spread of pathogens
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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), Black Krim Tomato (Solanum lycopersicum 'Black Krim') 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 Black Krim Tomato (Solanum lycopersicum 'Black Krim'):

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 Black Krim 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 Black Krim 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 Black Krim Tomato toxic to pets?

ASPCA: Foliage and unripe green fruit are toxic; ripe fruit is non-toxic

When should I repot my Black Krim 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: Heirloom cultivar prized for its unique smoky flavor and historical significance in Crimea

Usage: Edible fruit for fresh eating, sauces, and salads; ornamental foliage in edible garden landscapes

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