Imperial Red Philodendron (Philodendron 'Imperial Red')

Imperial Red Philodendron

Philodendron 'Imperial Red'

Rich crimson foliage matures to deep green, a dramatic indoor accent. Evergreen clumping foliage plant.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch foliage; tolerates low light but loses vibrant red color
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Watering Water thoroughly when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives at 18–27℃; protect from temperatures below 13℃ to avoid leaf browning and damage
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Characteristics

  • Leaf: Juvenile leaves are bright crimson; mature to deep green with reddish undersides; leathery, ovate shape
  • Stem: Thick, upright, reddish-brown stems; no aerial roots
  • Inflorescence: Spadix with green spathe (rarely produced indoors)
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Care Guide

Watering

Keep soil evenly moist but not waterlogged; allow top 2 cm to dry between waterings

Fertilization

Diluted balanced liquid fertilizer every 4 weeks. Avoid fertilizing in winter when growth slows to prevent nutrient buildup in soil

Banana peel compost tea:Compost banana peels for 2–3 weeks; steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Remove yellow or damaged leaves at the base to maintain plant appearance and airflow
  • Trim overcrowded stems in spring to encourage bushier, more compact growth
  • Wipe leaves regularly with a damp cloth to remove dust and improve light absorption
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; causes oral pain, drooling, vomiting

Humans: Contains calcium oxalate crystals; ingestion irritates mouth and throat; contact may cause mild skin irritation

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Garden Uses & Culture

Culture: Symbolizes warmth and tropical vibrancy; popular for modern interior design accents

Usage: Indoor ornamental foliage; container gardening for small spaces