Benefits Banana leaves are also the leaves of the banana plant, which can produce up to 40 leaves in a single growth period. Because the Banana Leaves are huge, flexible, waterproof, and attractive, they could be used in a variety of ways. Banana tea is prepared with bananas, boiling water, and cinnamon or honey if desired. It contains antioxidants, potassium, and magnesium, all of which can support with heart health, sleep, and bloating.