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.

Information on salt tolerance comes from northern nurseries in areas where the biggest issue is likely to be salt used for deicing roadsides. This native rose is generally not susceptible to the disease and insect pests that attack many of the hybrid roses. It's a shrub; plant where its thorns will not be an issue.

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.

The flowers are smaller than on most other native morning-glories, but they are attractive. Grow on fence or trellis.