It hasn't proven to be invasive for a friend who planted it in her yard here, tho I've read that it's trouble in some places. I love the flowers and the fruits are amazing. Read somewhere that they are edible, but I don't think I wanna try.
I wish I knew how to get a start off a plant. I was going to buy some, but all the plants in the nursery were so huge and I would rather not untangle a huge vine . . . . would rather start with a small plant and keep the vines where I want them. It's ok tho, I have lots of vines in the yard now . . . . stupid passion flower vines are such weeds . . . .