It produces bold, bright tones that make any garden stand out in the summer months. Corky Stem Passion Flower (Passiflora suberosa) is a fast-growing, Florida native vine that is an essential plant for a butterfly garden. It is the larval host plant for Gulf Fritillary, Zebra Longwing, and Julia Butterflies. This small vine can grow up to 2ft in height and produces yellowish-green flowers, which attract butterflies and hummingbirds with their nectar all year long. Its growth rate is quite impressive and can be grown as a trellis or ground cover. The fruits of Passiflora suberosa are purple-black, globose berries that are edible, with numerous health benefits. They can be eaten fresh off the vine or processed into jams, jellies or even wine. Its cold hardiness makes it an ideal plant for moderate and warm climate zones, such as USDA Hardiness Zones 9-11.