Brown Tips or Edges On Leaves

If edges remain green, the most likely cause is DRY AIR. Another reason is BRUISING -- people or pets touching the tips can be the culprit, as can leaf tips pressing against a wall or window. If edges are yellow or brown, the possible causes are many and varied -- OVERWATERING, UNDERWATERING, TOO LITTLE LIGHT, TOO MUCH SUN, TOO LITTLE HEAT, TOO MUCH HEAT, OVERFEEDING, DRY AIR or DRAUGHT. To pinpoint the cause look for other symptoms.