Native to (or naturalized in) Oregon:
- Evergreen fast-growing vine or climber, to 20 ft (6 m), slender branches. Leaves opposite, pinnately compound, 5-7 pointed leaflets, terminal leaflet longest, dark green, paler underside. Flowers are star-shaped, white, rose on the outside, borne in dense clusters (cymes), very fragrant; flower buds delicate, pink, long, pointed; blooms heaviest in late-winter. Fruit is globose and black, but rarely produced.
- Sun or light shade. Adaptable, prefers well-drained soil, but does well in poor soils.
- Caution: Even though it usually does not produce seeds, Jasminum polyanthum can become weedy and invasive, especially in tropical areas. It has become naturalized in Australis and New Zealand. "It spreads mainly vegetatively by layering and suckering from the roots. Stems travel long distances across the ground, frequently rooting down at leaf nodes (layering) to form new plants" (Weeds of Blue Mountain Bushland).
- Hardy to USDA Zone 8 Native to western China.