Viola yedoensis Makino is suitable for growing in wet soil such as riparian wetland and forest edge, and continuous cropping should be avoided, otherwise it will lead to variety degradation and slow growth.
It belongs to thermophilic plant, and the environment above 18 is the most suitable for its growth.If the temperature is too high in summer planting, measures should be taken to reduce the temperature.In winter, when the weather is too cold, attention should be paid to heat preservation, and if conditions permit, it can be planted in greenhouse or greenhouse.
Adequate light and illumination should be maintained throughout the year.Sufficient sunshine can promote its metabolism, accelerate its growth and increase its ornamental value.On the contrary, growth retardation and even yellow growth may occur.
During the growth period, because of its fast growth and more nutrients needed, it should be topdressed in time.Fertilizer can be prepared according to the ratio of decomposed cake fertilizer to diluted feces of about 1:25.
a slightly humid environment is conducive to its health and should ensure the supply of water.Usually, it can be watered every 2-3 days, and sewage can not be watered, otherwise insect pests will occur.After a sudden rise in temperature, water should be sprayed once in the morning and once in the evening.During the rainy season, attention should be paid to drainage to prevent root rot.
1. The surrounding weeds should be removed in time and the soil should be loosened in time to increase its permeability.
2. Pesticides should be sprayed during the period of frequent occurrence of pests in spring and autumn to prevent common pests such as red spiders.
