紫金牛屬常綠灌木或喬木，廣佈於南亞至東南亞濱海地區。主幹直立，嫩枝紅色。葉先端圓鈍，葉面深綠至橄欖綠，葉背淺綠。粉紅色或白色花瓣5枚。漿果扁圓形，未熟果紫紅色，成熟果黑色。開花期春至夏季，結果期夏至秋季。

An evergreen shrub or tree in the genus Ardisia, widely distributed in the coastal areas of South Asia to Southeast Asia. Trunk erect and twigs red. Leaf apex obtuse, dark green to olive green above, and pale green below. Five pink or white petals. Berries oblate, colored fuchsia before mature, and ripe black. Flowering from spring to summer, and fruiting from summer to autumn.

適合全日照至半日照溫暖環境，濕度高、水分足、土壤肥沃得以生長良好且迅速。介質乾就須澆水，每季施用一次長效性綜合肥料。天然樹形均整，萌芽力強，耐修剪，亦可修剪成圓錐或圓形等幾何造型。繁殖採用扦插或空中壓條法。

Suitable for warm environment with full sun to partial sun; high humidity, sufficient water supply and fertile soil can accelerate the growth. Water when the medium dries, and apply long-active compound fertilizers once a season. With a uniformed tree shape, strong potential of germination, and tolerance to pruning, they can be trimmed into conical or spherical topiary shapes. Propagated by cutting or air layering.

春不老生長勢強，主幹挺直、葉叢茂密，是良好的灌叢或綠籬植物材料。耐空氣污染與炎熱，作為道路分隔島的綠美化使用也有很好的表現。花朵引蜂、果實誘鳥，具有生態意義。

Featuring with strong growth, erect trunk and dense foliage, it’s an excellent shrub or hedge plant. Tolerant to air pollution and heat, it’s a great plant to be used for median greening. The flowers can attract bees while the fruits are favorite food of birds, which is of ecological significance.