Passion FlowerPassionflower leaves have been used traditionally as a mild calmative. Supports the nervous system. Soothes the nerves. Supports restful sleep. How It Works How It WorksPassionflower leaves have been used traditionally as a mild calmative. In fact, Algonquin Indians used passionflower tea to help soothe their nerves. Passionflower supports the nervous system in a variety of ways. Many have found that it helps with relaxation of tense muscles. It is