桂花品种较多,有金桂、银桂、丹桂、四季桂等。金桂花橙黄色,香气浓烈;银桂花黄白色,香气较浓;丹桂发芽较迟,花橙红色,香气浅淡;四季桂花黄白色,花期长,除严冬酷暑外,都会开花,以秋季最盛,香气较淡,树型矮小,宜于庭园种植观赏。它们的繁殖方法有以下几种。 More sweet-scented osmanthus varieties, there are Kim Gui, silver Gui, Osmanthus, such as seasons. Osmanthus orange yellow, strong aroma; silver sweet-scented osmanthus yellow-white, more concentrated aroma; Osmanthus germination later, orange-red flowers, pale; seasons Osmanthus yellow-white, long flowering period, , Aroma lighter, short tree, suitable for planting ornamental garden. There are several ways to breed them.