18+ Ficus Leaves Turning Brown On Edges. Relax and concentrate on finding the main reason why the leaves are going brown and falling off. When the leaves are turning brown, the cause is most likely environmental, but it could also be due to a disease.
Crowded roots and too much nitrogen in the soil can cause leaves to turn brown and drop.
As you can see in the pictures i have had some great growth in that time. If you haven't changed the soil in a while, do so. That question is a popular one we receive daily. It will also cause sunscald on the trunk and branches, resulting in sunken areas, cracks and cankers.