I, too, fell in love with passion vines. The scent is beautiful too.
I wonder if any fellow gardeners could give me advice on a few fast growing varieties, that produce lots of flowers; and maybe favorite sources to buy these passion flower varieties. We had 144 frost free growing days in 2016 in zone 4b Michigan. I'd have plenty of room for the vines to spread out. But in the end I'd have to treat them as annuals.