The Carolina jasmine grows from 10 to 20 feet long. It climbs by twining around supports with red-brown, wiry stems. In its natural habitat, this vine grows along roads and even climbs trees. When left unsupported, Carolina jasmine grows as a ground cover, spreading by stolons or runners, and reaching heights of 3 feet. Confederate jasmine also grows up to 20 feet long with support. It climbs by twining, dark brown stems filled with milky sap and by tiny holdfast roots. Without support, Confederate jasmine grows as a shrub or ground cover about 2 feet tall and 5 feet wide. This fast-growing vine may spread vigorously.
Carolina jasmine thrives in U.S. Department of Agriculture plant hardiness zones 7 to 10. In the northern edge of its range, Carolina jasmine benefits from protection from winter winds, but tolerates drought and wind in warmer climes. Prune once a year after flowering, and apply a balanced fertilizer during the plant's growing season. Confederate jasmine is hardy in USDA zones 8 to 10. It tolerates heat, wind and drought, and can be overwintered indoors or grown as an annual in cooler climates. Fertilize Confederate jasmine in spring, and prune after flowers have withered to keep growth under control. To encourage branching and dense growth, pinch the plant's tips.
Carolina jasmine blooms from February to April with fragrant, funnel-shaped blossoms in a bright yellow shade. Its 1- to 1 1/2-inch flowers attract butterflies and contrast with its shiny, light-green evergreen foliage. The Carolina jasmine's leaves may take on a bronze, yellow or purple hue in winter. The Confederate jasmine, an evergreen, blooms from May to June, producing clusters of white, star-shaped flowers atop glossy, dark green leaves. Its aromatic flowers attract bees.
The Carolina jasmine grows in full sun to partial shade, but produces more flowers and denser foliage in sunny sites. It prefers fertile, moist and well-draining soil. Mature plants tolerate drought. Confederate jasmine also grows in full sun to partial shade. It prefers moist, well-drained and loamy soil. Clemson Cooperative Extension recommends amending planting sites with leaf mold.