Calathea Leaf Browning: Humidity and Heat Solutions

Your plant—large green leaves with dark green lines and purple undersides—is likely a Calathea (possibly zebrina or veitchiana). Brown leaf tips indoors after thriving outside indicate low humidity or excessive heat near the window.

Humidity Boost

Place the pot on a pebble tray: fill a saucer with pebbles, add water to just below the pebble tops, and set the plant on top. As water evaporates, it raises local humidity without waterlogging roots. Group plants together for a similar effect.

Additional Care

• Keep away from heating vents and hot afternoon sun.
• Water with room-temperature, filtered water (Calatheas are sensitive to fluoride and minerals).
• Maintain evenly moist soil—never bone dry, never soggy.
• Provide bright, indirect light.

These "prayer plants" fold leaves at night; consistent conditions keep them vibrant.