I've been trying to find this lovely plant to grow, and I cannot seem to find this the original wild passionflower which is the one most would use medicinally. I have tried germinating them also. If anyone has a source for cuttings or accepts the challenge of germinating them please do get in contact. (I've just ordered more seed... round 3!)
This has a long history of medical use. I mostly think of it for anxiety and related symptoms. again Dr. Marisa Marciano does a brief low down here: Passiflora incarnata