For several years I have purchased Passiflora incarnata (passion flower) vines from reputable nurseries. I have wanted to grow one on the back side of a fence facing west. Every year they have died. I never saw a flower unless the plant came with one.
So, this last year I purchased another, but this time I put it in a pot and set the pot on the north wall of my house, because plants in pots can't handle as much sun as when in the ground if they are sensitive to too much sun at all. I was just out looking around and noticed that the vine that has crawled up the side of the house now has flowers. It has also traveled onto a trellis which holds an orange trumpet vine (another story). To my surprise there are about five flowers and more to come. Here is a picture I took of one of the passion flower blooms. I am a happy gardener!
The sedative effect of Passion flower has made it popular for treating a variety of ailments, including nervousness and insomnia. Research had indicated that passion flower has a complex activity on the central nervous system, which is responsible for its overall tranquilizing effects. Also, it has an antispasmodic effect on smooth muscles within the body, including the digestive system, promoting digestion.
Also, there are no reported side effects for passion flower. However, it is not recommended for use in pregnant women or children under the age of two.
(And in self protection - here is my disclaimer: This is not medical advice, but herbal information that you can acquire on the internet or from herbal practitioners. Anyone already taking a sedative or tranquilizer would need to consult a health care professional before using passion flower.