白花木在闽中地区每年都在春夏开花,但开花之后,多为零星花,既小又稀。依据这种特性,笔者认为如能在养护方面下功夫,很有可能二度开花(指全株有花),或多次开花。为此,笔者借鉴培育紫薇二度开花的实践经验,通过多年的努力,获得成功。现把做法与体会归纳如下,供读者参考。一、一定要种植于肥沃、疏松、排水良好的微酸性砂质壤土中。要坚持二年翻盆换土一次(要注意带土球),时间最好在3～4月。剪除病枯根,剪短老长根,促发侧根。剔除1/3—1/2宿土,补充新的培养土,浇透定根水,置于半阴和通风处养护。在养护中如发现盆土偏碱性,又处于不宜翻盆换土的季节,可用0.5%～0.8%硫酸亚铁溶液浇施(单浇或混浇均可),每半个月一次,连续浇 White flowers bloom in spring and summer every year in the Central Fujian Province, but after flowering they are mostly sporadic flowers, both small and sparse. According to this feature, I believe that if conservation efforts, it is likely second flowering (referring to whole plant flowers), or multiple flowering. To this end, I learn from cultivating crape myrtle second flowering experience, through years of hard work, success. The practice and experience are summarized below, for readers reference. First, we must be planted in fertile, loose, well drained slightly acidic sandy loam. To adhere to turn the basin for two years once (pay attention to bring soil ball), the best time in 3 ~ April. Cut off the diseased roots, cut the long roots, promote lateral roots. Exclude 1 / 3-1 / 2 soil, add new culture soil, pour rooting water, placed in the shade and ventilation maintenance. In conservation such as basin found alkaline, but also in the basin should not be turned over for the season, available 0.5% ~ 0.8% ferrous sulfate solution pouring (single pouring or mixing can be), once every two weeks, continuous Poured