Deep violet to lavender flowers in the most fantastic, out-of-this-world shape are produced throughout the year in mild climates or during the summer when used outdoors in Chicago-area landscapes. Sprawling and climbing to about 5 feet in height, this cultivar is small enough to grow in a container. In the tropics, the leaves of passion flowers are the preferred food plant for butterflies. Plant the passion flower in full sun and well-drained, moist soil, and provide a trellis or support for the plants to clamber over.