柑桔属芸香科,常绿灌木或小乔木,它的特性是喜温暖、向阳、湿润,怕霜冻、水涝,宜中性或微酸性疏松土壤。在-7℃时,枝叶会受到不同程度的冻害;在-9℃时,就会引起严重冻害。只有年平均温度在15℃以上,一月平均温度在5℃以上,极端低温在-5℃以上才能地栽。但在寒冷地区盆栽还是可以的,冬季天冷时移入室内,一 Citrus Rutaceae, evergreen shrubs or small trees, its characteristics are like warm, sunny, moist, afraid of frost, waterlogging, should be neutral or slightly acidic loose soil. At -7 ℃, leaves will be different degrees of frost damage; at -9 ℃, it will cause serious frost damage. Only the average annual temperature above 15 ℃, January average temperature above 5 ℃, extreme low temperature above -5 ℃ to planted. Potted plants in cold areas, however, are still possible. When the winter is cold, they move into the indoor area