Star Jasmine

Trachelospermum jasminoides is native to eastern and southern China, including the provinces of Jiangsu, Zhejiang, Fujian, Guangdong, and Guangxi, as well as Japan, Korea, and Vietnam, where it grows in open woodlands, forest margins, and on rocky slopes.

• Also known as "Confederate Jasmine" in the American South — though it has no connection to the Confederacy; the name arose because it was widely planted in the southeastern US during the post-Civil War era
• The genus name Trachelospermum comes from the Greek "trachelos" (neck) and "sperma" (seed), referring to the beaked seeds
• The species name jasminoides means "jasmine-like," referring to the fragrant flowers
• Introduced to Western horticulture from China in 1844 by the plant collector Robert Fortune
• Became enormously popular in the southeastern United States, where it thrives in the warm, humid climate
• One of the most widely planted ornamental vines in California and the southern states
• Also widely planted in Australia, the Mediterranean, and other mild-climate regions worldwide
• Has received the Royal Horticultural Society's Award of Garden Merit
• In China, the plant is called "luo shi" (络石) and has been used in traditional medicine for joint pain and swelling

Star Jasmine is a medium-sized evergreen woody vine climbing by twining stems to heights of 3–6 m, or spreading 1–2 m as a ground cover, forming a dense mat of glossy foliage.

Stems: Slender, wiry, green to reddish-brown, twining tightly around supports. Young stems produce a milky white sap when cut (characteristic of Apocynaceae). Stems become woody with age.

Leaves: Simple, opposite, ovate to elliptic, 3–8 cm long and 1.5–3.5 cm wide, leathery, dark glossy green above, paler beneath, with smooth margins and a pointed tip. New growth in spring often emerges bronze-red before maturing to dark green. In fall, some leaves may turn bronzy-red to burgundy in cold weather. Leaves are arranged in flat, overlapping pairs along the stems, creating a tidy, formal appearance.

Flowers: Produced in abundance in terminal and axillary cymes, each bearing 15–30+ flowers. Individual flowers are creamy-white, pinwheel-shaped (rotate), 1.5–2 cm across, with 5 twisted petals that spiral like the arms of a pinwheel. Buds are pinkish. Flowers are intensely fragrant — a sweet, rich, jasmine-like perfume that can fill a garden. Blooms primarily in May–June, with occasional repeat blooming through summer.

Fruit: Paired, slender, bean-like follicles 10–20 cm long, green turning brown, containing many small seeds with silky tufts. Rarely produced in cultivation.

Roots: Fibrous root system. The plant transplants well and establishes quickly.

Star Jasmine grows naturally in open woodlands, forest margins, rocky slopes, and stream banks in the warm-temperate to subtropical regions of eastern China, Japan, and Vietnam.

• Adaptable to a wide range of conditions — full sun to shade, heat and humidity, and various soil types
• Best flowering occurs in full sun to light shade with at least 4–6 hours of direct sunlight
• Tolerates drought once established but grows and flowers best with regular moisture
• Moderately salt-tolerant — suitable for coastal gardens
• The dense, evergreen foliage provides excellent year-round privacy screening and erosion control
• Flowers are pollinated by moths and other nocturnal insects — the fragrance is strongest in the evening
• Relatively pest and disease-free — occasionally affected by scale insects or mealybugs
• The milky sap is a characteristic of the Apocynaceae family and may cause skin irritation in sensitive individuals
• Not considered invasive in most regions, though it can spread aggressively by sprawling stems in ideal conditions
• One of the most durable and long-lived landscape vines — individual plants can persist for 50+ years

Star Jasmine is one of the most versatile and easy-to-grow vines for mild-climate gardens.

Site Selection: Full sun to partial shade. More sun produces more flowers. Plant against a trellis, fence, wall, or use as a ground cover on banks and slopes. Excellent for containers.

Soil: Any well-drained soil. Tolerates clay, sand, acidic, and alkaline conditions. pH 5.5–7.5. Adaptable.

Planting: Plant container-grown vines in spring or fall. Space 60–100 cm apart for ground cover, 1–2 m apart for wall coverage. Water during establishment.

Watering: Drought-tolerant once established but best with regular moisture. Water deeply during prolonged dry periods.

Pruning: Prune after the main flowering flush in June. Thin out congested growth, remove dead stems, and shape as desired. Tolerates hard pruning if overgrown. For ground cover, mow or edge annually to maintain a tidy appearance.

Training: The twining stems need thin supports — wire, trellis mesh, or fishing line strung between eye hooks. Guide young stems to the support initially.

Fertilization: Feed in early spring with a balanced, slow-release fertilizer. Avoid excess nitrogen.

Hardiness: USDA Zones 8–11. Damaged below -10°C but usually regrows from the base. Root-hardy to about -15°C.

Propagation: By semi-hardwood cuttings in summer, layering, or division of rooted stems.