Certified GKH Gardening Expert
Brown leaf tips usually indicate the plant is not getting enough water. When you water, make sure you water until the water runs out the drainage holes in the bottom of the pot. Let it drain, and discard any water that collects in the tray beneath the pot. Most plants do not like their roots to sit in water, which can lead to root rot.
Brown tips also can indicate not enough humidity or too many salts from too much fertilizer. To rid your plant of excess salts, run water through the container for a few minutes.