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日香桂(Osmanthus fragrans CV. Rixianggui)是四季桂的变种,为木犀科常绿灌木,原产我国长江上游地区。它四季开花且气味浓香,属桂花中的珍品。四川苍溪县有大量母株,现广泛栽培于长江流域,我国北方多行盆栽。 日香桂喜温暖湿润的环境,成龄树抗逆性强,能耐38℃以上的高温和-10℃的低温,在淮河以南地区能安全露地越冬。日香桂平均气温7℃以上时开始生长,一年抽生3-4次新梢,花在枝条各叶腋内多次或不断开
Osmanthus fragrans CV. Rixianggui is a variety of Siji Gui, Oleaceae often evergreen shrub, origin of China’s upper reaches of the Yangtze River region. It is flowering in four seasons and smells fragrant, is a sweet-scented osmanthus treasures. Cangxi County, Sichuan Province has a large number of mother plants, is now widely cultivated in the Yangtze River Basin, northern China, multi-line potted plants. Japanese sweet Gui hi warm and humid environment, mature trees strong resistance, capable of high temperatures above 38 ℃ and -10 ℃ low temperature, south of the Huaihe area can safely open wintering. The average daily temperature of fragrant Gui 7 ℃ above the beginning of growth, pumping 3-4 times a year new shoots, flowers in the axils of the branches many times or not