It took a few years, but it bloomed a few times last summer and this year it looks like it will bloom all summer. It is quite happy in a pot and is happiest when it is not forced into dormancy. Instead it overwinters in a sunny corner of the basement as it wouldn’t survive the winter here. It is not, however, a plant that you want to let loose if you live farther south, at least not without thinking about it. Now to get the new red one growing.
But you have to admit, it is rather over the top in its structure!!
Passiflora caerulea
Acair Fearann 
There are times and places in the South where having it take over would be nice. I first encountered this beauty while making my way through a bit of the Big Thicket in Texas. A tangle of tall spindly pines, fierce briars with climbing trunks as big around as my wrist, muggy and hot to the max, and then there was a Passion flower vine decorating an old fence line. Gorgeous!
It is gorgeous!