The blue passion flowers grow wild on my property near Fort Payne, Alabama.
They produce an egg shape fruit that is edible.
Here is a little bit about them.
Passiflora Caerulea - blue passion flower
It is popular with gardeners because of its intricate, scented flowers that have an almost plastic-looking appearance. The unusual shape of the flowers has led to the plant being associated in Christian symbolism with the passion of Jesus; the three stigmas representing the three nails used to nail Jesus to the cross, the ovary and its stalk represent the chalice of the Last Supper, the five anthers represent the five wounds, the corona represents the crown of thorns, the ten 'petals' (actually five petals and five sepals) the apostles (save Judas the traitor and Peter the denyer); the old leaves also represent the hands of those who persecuted him, the young leaves the point of the lance used to stab him, and the tendrils the whips of those who beat him.