This species is one of 300+ within the genus and most are tropical, luckily this one is native to Ohio. Passionflower prefer sun and average garden soil. Although they are late to emerge in the spring, this vine usually grows to a height of 10-20 feet annually. Because this is close to the northern-most range of the species, harsh winters might harm the roots. Heavy mulching in the fall is advisable. Passionflower plants can be a food source for the variegated fritillary butterfly.