The name 'passion' is a reference to the crucifixion of Jesus of Nazareth. Parts of the flower are said to resemble instruments used during the crucifixion. Given the proper support this plant makes an excellent climbing vine hedge.

Less aggressive growth than similar Asian species. Blooms only on new wood. At least one cultivar has white flowers. Good trellis, post or fence vine. It's a legume, so it can grow in poor soils, but blooms much better with a richer soil mixture.