Problem #1: Why are the leaves on my Ficus turning brown? Leaves will appear to have brown spots that are soft to the touch if they are being overwatered. If the leaves are turning brown and it has a dry feel to them, this is typically an indication the leaves have been burnt from direct sunlight.
Problem #2: Why is my Ficus dying? The most common reason is due to overwatering. Rubber Trees, and Ficus plants in general, are extremely sensitive to being overwatered. Check to see that the soil is a well-draining mix and is not holding too much water.
Problem #3: How often should you water a Ficus plant? In the growing season (early spring to the middle of Autumn), check the soil once every 7 to 10 days. It will require watering roughly every two weeks. In the winter you will need to reduce your watering schedule drastically.
Signs of Overwatering: Soft brown spots appear on the edges of the leaves, and sudden leaf drops are all clear indications of overwatering. Do not allow your ficus plant to sit in excess water.
Common Pests: Spider mites, mealybugs, and fungus gnats