Common Name: Carolina yellow jasmine
Type: Vine
Family: Gelsemiaceae
Native Range: Southern United States, Mexico, Guatemala
Zone: 7 to 10
Height: 12.00 to 20.00 feet
Spread: 3.00 to 6.00 feet
Bloom Time: February to April
Bloom Description: Yellow
Sun: Full sun
Water: Medium
Maintenance: Low
Flower: Showy, Fragrant
Culture
Winter hardy to USDA Zones 7-10 where it is best grown in moist, organically rich, well-drained soils in full sun. Tolerates light shade, but best flowering and growth occur in full sun. Plants will grow as a twining vine or if unsupported as a bushy ground cover. Plants may survive winter in the Missouri boot heel but not in St. Louis.
Noteworthy Characteristics
Gelsemium sempervirens, commonly called false jasmine or false jessamine, is an evergreen twining vine that is native from Virginia to Florida west to Texas and Central America. It is typically found in open woods, thickets and along roads. Bright, fragrant, funnel-shaped, yellow flowers (to 1.5” long) appear either solitary or in clusters (cymes) in late winter to early spring (February – April depending on location).
Source