This is Passiflora caerulea, also known as Blue Passion Flower, Hardy Passionflower, Passion Vine, and Passionvine. This climbing vine will grow up to 40 feet hight if it has something to climb. It does especially well in full sun and I would not plant it in anything other than that. It begins blooming in the middle of the Summer and finishes up in early Fall. This is a host plant for the Zebra Long Wing, Zebra Heliconian, Julia Heliconian, Isabellas Heliconian, Banded Orange Heliconian, Mexican Fritillary, Scarce Bamboo Page, Erato Heliconian, Variegated Fritillary, and Gulf Fritillary butterflies. It is also a larval host plant for the Plebeian sphinx Moth. USDA Hardiness Zones 6 to 10.