Why a Tropical Palm Plant Has Brown Spots

Underwatering

• When a palm plant does not receive adequate water, the leaves will turn brown. Proper watering will remedy this problem.
  
  

Overfertilizing

• Palm plants require very small amounts of fertilizer, so they should be fed lightly. Too much fertilizer can cause the tips of the leaves to brown.
  
  

Lack of Humidity

• Tropical palm plants require a relatively high level of humidity in the air. Misting the leaves will add needed humidity.
  
  

Cold Air Exposure

• Drafty locations will have a negative effect on your palm plant. Tropical palms can adapt to cooler temperatures, but they cannot tolerate exposure to cold air.
  
  

Infection

• Palm plants infected with leaf spot disease will display brown spots on leaves. Affected leaves should be cut off and discarded. Leaf spot disease is caused by over-watering or chilling.