1、 Breeding method

1. Soil: neutral or weak acid soil with high humus content and good air permeability should be used to raise it. Do not use clay loam with poor air permeability

2. Sunshine: it needs plenty of sunshine, so you can give it more sunshine at ordinary times, but avoid strong direct light

3. Temperature: primrose is sensitive to temperature. It likes a cool environment. About 10 degrees is a good temperature environment for primrose to grow normally. It will stop growing below zero and dormant above 30 degrees

4. As long as the water content of the pot is not high, we can keep the water content of the pot moist

5. Fertilization: because of the great demand for water, the amount of fertilizer required is also relatively large. In the process of maintenance, we can apply thin comprehensive all vegetable fertilizer and water once a week to meet its demand

2、 Pruning residual flowers

After it blooms, there are usually a small amount of flowers left on the branches. They are not only unsightly, affect the ornamental of the plant, but also consume the nutrients of the plant. Therefore, they need to be cut off to promote the growth of roots and make them grow better

3、 Pest control

1. Symptoms of leaf spot disease: there are small yellowish brown spots on the leaf surface and yellow halo around the spots

Methods: in the early stage of the disease, 53.8% can be sprayed 1000 times of the suspension

2. Symptoms of mealybug: adult insect, if sprinting, sucking stem and leaf juice

Methods: insects can be removed manually when they are few, and insecticides need to be sprayed when they are many