This is Passiflora elegans. Growing to about 15 feet high, this plant likes to live in full sun to partial shade. This evergreen vine blossoms from the middle of the Summer until early Fall. It attracts a large variety of birds, bees, and butterflies. It 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 8 to 11