1、 Soil

Viola viola is suitable for growing in soils with medium fertility and good drainage performance at an altitude of 100 to 1500 meters. Continuous cropping is not allowed, otherwise it will lead to variety degradation

2、 Illumination

Ensure the duration of sunlight every day. Avoid strong sunlight during seedling raising, otherwise it will easily lead to hard stems and leaves and poor flower quality. It is best to breed in a place with ventilation and perennial light, which can be cultured in a greenhouse

3、 Temperature

Its optimum growth temperature is 18-22 ℃. During the high temperature period in summer, you should pay attention to summer vacation and avoid being exposed to high temperature for a long time

4、 Watering

It is suitable for growing in a relatively humid environment. After planting, water should be poured several times continuously to slow the seedlings and keep the surrounding air moist. However, the watering should be moderate, and the preparations for drainage and waterlogging prevention should be made to prevent rotten roots from dying

5、 Fertilization

Thin fertilizer should be applied frequently, and 500 times of compound water and fertilizer and 500 times of urea diluent can be applied at intervals during the growth period. After the first flowering period, only 1000 times potassium dihydrogen phosphate and compound fertilizer were applied

6、 Precautions

1. Attention should be paid to the prevention and control of diseases and insects. It can be effectively controlled by irrigating roots with 1000 times of 80% trichlorfon every 5-7 days for 2-3 consecutive times during the period of frequent insect pests in spring and autumn. Pay attention to ventilation, otherwise it will increase the probability of disease and overgrowth

2. The weeds around it shall be cleaned frequently. If not cleaned in time, it is easy to have disordered roots, slow growth and other phenomena