Foxtail Palm Browning Indoors: Light Deficiency Solution

The Symptom

A large foxtail palm moved indoors for winter shows frond browning. Smaller ones under grow lights in the basement are fine. The big palm gets only window light; fronds are misted every other day.

Diagnosis: Insufficient UV Light

Glass filters out the UV spectrum tropical palms need. Over time, the plant declines—browning fronds, weak growth.

Fix: Add a Grow Light

Invest in a full-spectrum grow light for the living room palm. Provide 12–14 hours daily. This restores the UV energy the plant would get outdoors and halts decline.