Passiflora caerulea, commonly known as the Blue Passion Flower or the Common Passion Flower, is a vine native to South America. These names may also be applied to Passiflora edulis sometimes known as the passionfruit. It is popular with gardeners because of its intricate, scented flowers that have an almost plastic-looking appearance.
This plant can be used as a rootstock for some of the less hardy members of this genus, conferring on them an additional cold tolerance. Be careful that root suckers do not take over from the grafted plant;