I have been thoroughly enjoying reading this thread. There is a wealth of information here. I am glad I could contribute to it in a small way. I received my 2 passiflora vines from a NABA (butterfly assoc.) raffle. I was also told of their value at a Butterfly World info session. It seems the GFs are not as picky as the Zebra Longfwings about what type of passion vine they use. The passiflora suberosas do not have showy blossoms. Their flowers are usually small and green.
Daily Butterflies (page3)
Continued here> http://davesgarden.com/forums/t/724871/ come join us!!