Crimson Calathea (Calathea picturata Crimson)

Crimson Calathea

Calathea picturata Crimson

Its foliage blazes with crimson veins against silver, a living watercolor. Evergreen tropical foliage plant; common name: Crimson Calathea.

Partial sun
2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch the silver foliage surface
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Watering Keep soil consistently moist but not waterlogged; use room-temperature, chlorine-free water to prevent leaf tip browning
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Temperature Thrives in warm, humid conditions; avoid cold drafts below 15°C which can cause leaf curling
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Characteristics

  • Leaf: Oval leaves with silver upper surface, deep crimson undersides and central veins; edges slightly ruffled
  • Stem: Short, green clumping stems emerging from underground rhizomes
  • Inflorescence: Small white to pale purple bracted flowers (rare in indoor cultivation)
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Care Guide

Watering

Keep soil evenly moist; mist foliage 2–3 times weekly to maintain 50%+ humidity

Fertilization

Diluted balanced liquid feed every 4 weeks. Cease fertilization in autumn and winter when growth slows to prevent nutrient buildup

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drenching; discard solid peels to avoid pest infestations
Pruning
  • Trim yellowing or damaged leaves at the base to maintain a tidy clumping form
  • Remove spent flower stalks (if present) to redirect energy to foliage growth
  • Divide overcrowded clumps during spring repotting to propagate new plants
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats; no harmful compounds present

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes vibrant positivity and tropical warmth due to its bold, contrasting foliage

Usage: Indoor ornamental foliage for bright bathrooms, terrariums, or shaded living spaces