Passion flower, native to the southeastern U.S. and Central and South America, has long been used by Indigenous populations and cultures for treating a wide variety of ailments, including heart problems, wound healing, and as a blood tonic. It is famous for helping to calm anxiety and promote sleep.
Passion flower, sometimes spelled as one word, can help reduce pain, ease spasms, and calm restlessness.
Passion flower is also used to treat palpitations, asthma, and other conditions associated with anxiety and stress.