Louis' Calathea (Calathea louisae)

Louis' Calathea

Calathea louisae

Its leaves ripple with soft green stripes, a quiet indoor beauty. Evergreen foliage plant; common name: Louis' Calathea.

Partial sun
1–2/week
Beginner
🌱

Plant Needs

☀️
Sunlight Bright indirect light; avoid direct midday sun which can scorch delicate leaf tissue
💧
Watering Water when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot
🌡️
Temperature Thrives in warm, consistent temperatures; avoid cold drafts below 15°C
🔍

Characteristics

  • Leaf: Oval, glossy green with pale green lateral stripes; undersides are deep purple
  • Stem: Short, upright rhizomatous stems; forms tight, dense clumps
  • Flower: Small, white to pale purple bracted blooms (rarely produced indoors)
🛠️

Care Guide

Watering

Keep soil evenly moist; mist leaves 2–3 times weekly to boost humidity

Fertilization

Diluted balanced liquid feed every 4 weeks. Avoid over-fertilizing, which can cause leaf tip burn

Banana peel compost tea:Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 for root drench; discard solid peels to prevent pest issues
Pruning
  • Remove yellow or browning leaves at the base to maintain plant appearance and airflow
  • Trim overcrowded clumps in early spring to encourage new rhizome growth
  • Wipe leaves regularly with a damp cloth to remove dust and support photosynthesis
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxic effects on humans

📖

Garden Uses & Culture

Culture: N/A

Usage: Indoor ornamental foliage; has mild air-purifying properties