Viola yedoensis is more suitable to grow in wet soil such as river bank wetland and forest edge, and continuous cropping should be avoided, otherwise it will lead to variety degradation and slow growth.
Second, the temperature
As a mesophilic plant, the environment above 18 is most suitable for its growth. If the temperature is too high when planting in summer, measures should be taken to reduce the temperature. It's too cold in winter, so keep warm. If conditions permit, we can plant in greenhouses or greenhouses.
Third, light.
Adequate light and lighting should be maintained throughout the year. Adequate sunshine can promote its metabolism, accelerate its growth and increase its ornamental value. On the contrary, it may be stunted or even yellow.
Fourth, fertilization.
Due to rapid growth, more nutrients are needed in the growing period, and topdressing should be done in time. Each topdressing can be carried out according to the ratio of decomposed cake fertilizer to diluted feces of about 1:25.
Verb (abbreviation for verb) water
Micro-humid environment is beneficial to its health, so it is necessary to ensure water supply. Generally, water should be poured once every 2-3 days, and sewage should not be poured, otherwise pests will occur. After the temperature rises suddenly, spray water once in the morning and once in the evening. Pay attention to drainage in rainy season to prevent root rot.
Matters needing attention about intransitive verbs
1. Weeds and loose soil around should be removed in time to increase its air permeability. 2. Pay attention to spraying pesticides in spring and autumn when pests are frequent to prevent common pests such as red spider.