Passion fruit is a flowering tropical vine, known as Passiflora, that grows in warm climates, including South America, Australia, South Africa, and India. Passion fruit contains a soft pulp and lots of seeds inside a hard rind. People can eat the seeds and pulp, juice it, or add it to other juices. Passion fruit has recently gained a lot of attention because it is a rich source of powerful antioxidants and may also have other health benefits.