Answer: Your Japanese painted fern prefers to grow outdoors in bright shade with moist soil. The fronds are probably drying out due to dry air and lack of sufficient soil moisture. Try watering as often as necessary to keep the soil moist but not soggy wet and mist the plant daily to help increase humidity in the air. If it continues to fail, take it outdoors and put it in a spot that receives a few hours of morning sun and afternoon shade. It should perk right up for you.
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