calathea

Goeppertia spp.

1 diagnosis

Avg. confidence 90%

Diagnoses

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GR-8116

90%

Extreme low humidity (<40%) and cold temperatures in northern winters cause rapid leaf edge necrosis and crispy new growth in tropical prayer plants.

Maintain 60%+ humidity using a dedicated humidifier or grouping plants tightly.
Target indoor temperatures between 20-24°C and avoid cold drafts from windows.
Use room-temperature distilled or rainwater to avoid mineral burn on sensitive foliage.

Use grow tents or cloches to maintain a stable microclimate during the heating season.

90%