This is Passiflora biflora, also known as Two-Flowered Passion Flower, Passionflower, and Passion Vine. Growing up to 15 feet in length this passiflora loves to live in full sun. From the end of Spring to the middle of Fall this plant blossoms stunning colors of Rose, Mauve, Bright Yellow, and White. 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 9 to 11