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Brown Spots in Calathea Rattlesnake

verifiedReviewed by the GreenScout Team

The Calathea Rattlesnake is a striking tropical houseplant known for its long, lance-shaped leaves with bold dark green and light green patterns that resemble a rattlesnake's markings

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Calathea Rattlesnake care requirements

These care conditions are most relevant to brown spots in Calathea Rattlesnake. Check each one as a potential cause.

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Light
Bright, indirect light; tolerates moderate indirect light but avoid direct sun which can fade leaf patterns
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Water
Keep soil consistently moist but not waterlogged; water when top inch of soil feels dry; use distilled or filtered water to prevent mineral buildup
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Humidity
Requires high humidity of 50–80%; mist regularly, use a pebble tray with water, or place near a humidifier
symptoms

Symptoms to look for in Calathea Rattlesnake

  • fiber_manual_recordBrown patches on leaves
  • fiber_manual_recordCrispy brown areas
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Common causes in Calathea Rattlesnake

  • fiber_manual_recordFungal leaf spot
  • fiber_manual_recordSunburn
  • fiber_manual_recordBacterial blight
  • fiber_manual_recordCold damage
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How to diagnose brown spots in Calathea Rattlesnake

Sunburn: bleached patches facing light source. Fungal: brown spots with rings. Bacterial: water-soaked spots turning brown.

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How to treat brown spots in Calathea Rattlesnake

Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.

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Preventing brown spots in Calathea Rattlesnake

Avoid direct midday sun. Improve air circulation. Water at soil level.

Other Calathea Rattlesnake problems