Does anyone know the parentage of this cross? How hardy is it? Just found some nice-sized vines of it, in bud, for $7 !!
Let's see... the book says "Blue Boquet's" parentage is ((P. amethystina x P. caerulea) x (P. amesthystina x P. caerulea)) x P caerulea. Given that mix, I'd guess it hardy enough to make it in Alabama if you give it a good southern-facing exposure.