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Brown Spots in Calathea Medallion
verifiedReviewed by the GreenScout Team
The Calathea Medallion is a stunning foliage plant featuring round leaves with intricate patterns of deep green, light green, and cream-colored concentric rings that resemble a medallion or target
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Calathea Medallion care requirements
These care conditions are most relevant to brown spots in Calathea Medallion. Check each one as a potential cause.
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Light
Bright, indirect light; tolerates moderate light but avoid direct sun which can bleach leaf patterns and cause damage
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Water
Maintain consistently moist soil without waterlogging; water when top inch feels dry; prefer distilled or filtered water
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Humidity
Demands high humidity of 60–80%; use a humidifier, mist daily, or place on humidity trays with pebbles and water
symptoms
Symptoms to look for in Calathea Medallion
- fiber_manual_recordBrown patches on leaves
- fiber_manual_recordCrispy brown areas
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Common causes in Calathea Medallion
- 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 Medallion
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 Medallion
Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.
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Preventing brown spots in Calathea Medallion
Avoid direct midday sun. Improve air circulation. Water at soil level.