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大丽花在球根花卉中以花大美丽而著称。它原产墨西哥,喜高燥冷气候,在10摄氏度~15摄氏度的气温下生长良好。在长江流域等地区,一年可开花两次,首次在六、七月间开花;盛夏时地上部分枯萎,秋后萌发,再于国庆节前后开花。大丽花的块根,是储藏养分的器官;块根忌温怕热,在高温高湿下易腐烂。故在夏季气温高的地区护理要十分小心。
Dahlia flower bulbs in the flower is known for its beautiful. It is native to Mexico, hi high and cold climate, good growth at temperatures of 10 degrees Celsius ~ 15 degrees Celsius. In the Yangtze River Basin and other regions, flowers can be blown twice a year for the first time in June and July; in midsummer, some of the fields withered, germinate in the autumn, before the National Day flowering. The root of dahlia is the organ that stores nutrients; the root of tuber must not be afraid of heat and perishable under high temperature and high humidity. Therefore, care should be taken in areas with high temperatures in summer.