1、 Soil

If the self-contained basin soil is too hard and hardened, do not use it. Replace the basin and soil in time. Mix the garden soil with rotten leaf soil and add some rotten organic fertilizer, preferably slightly acidic soil. This planting soil is loose and fertile, which is conducive to root development

2、 Environment

Primroses like warm environment and mild sunshine. Do not put it in direct sunlight, which may cause its leaves to turn yellow. Autumn and winter season can be more exposed to the sun. But it can't spend the winter in the temperature below zero, and the temperature in summer can't be too high. It's necessary to cool down in time

3、 Watering

Primroses like a humid environment, but they can't be watered frequently. Drainage must be done well to avoid the problem of soaking and rotten roots. In summer, it is best to water once in the morning and evening. In other seasons, when it is dry, water it thoroughly. It is best to often spray a little water around it or on the leaves to maintain the surrounding air humidity and prevent the problem of dry leaf tips

4、 Fertilization

Fertilization can be started almost 10 days after buying it. You can use the thin fertilizer solution combined with nitrogen and phosphorus for fertilization, which is convenient and clean. Fertilize once a week during the growth period, and use more nitrogen fertilizer to promote the fattening of branches and leaves. When changing pots, you can put some rotten organic fertilizer as base fertilizer to improve soil fertility

5、 Diseases and insect pests

It is prone to sudden collapse disease during seedling stage, which may cause seedling decay and death. Once a problem occurs, it should be prevented and treated immediately. A small amount of dixone powder can be mixed with 40 times fine sand and put into the basin soil for treatment