The Passion Flower grows like a weed in my greenhouse.It's another plant that tries to strangle me, I try to persuade it to wrap round wires across the greenhouse roof. It will have new flowers every day and will be allowed to grow to the door. When it reaches the door I cut it all the way back and off it goes again!
When I worked it had free reign and set fruit which have self sown their seeds and new plants pop up here and there. Bees and other insects love it.
I cannot for the life of me remember where it came from :-(