Could someone please recommend some Passiflora for my Zone 7 conditions. It can get to 10 or lower on rare occasions in the winter here. I have a Passiflora I found growing on the road side here. It returns every year and I would like some other bloom colors, etc. Any advice would be greatly appreciated. I have a feeling that all the unusual varieties will be out of the question for me, and I don't want to bring them in over the winter. I already have enough of that to do. LOL. Thanks in advance!