Are the leaves on your Stromanthe turning brown on the edges? Step 1: Clean up your plant. This allows the plant to direct its energy to new healthy growth. Next: Solve the problem. The most common reason the Stromanthe’s leaves are turning brown on the edges is your tap water. It contains salts, chlorine, minerals, and fluoride. They can build up in the soil of your plant causing the tips of the leaves to burn, turn brown, and curl up. Try using a water filtration system. If this is not possible, you can leave water in an open container overnight. This can help relieve some of the chlorine.
If this is not helping, you can also try to increase the humidity, keep soil consistently moist and make sure your Stromanthe is not in a drafty area or in the path of heating and cooling vents.