The growth of primroses consumes more fertilizer. It is difficult to meet the demand of primroses only because of the nutrients in the soil. Additional fertilization is needed to supplement nutrients. The farmyard fertilizer with moderate fertilizer effect and sufficient nutrients can be used for the fertilized fertilizer. If the whole plant is abnormal, the fertilizer can be applied according to the specific state of primrose: the branches and leaves are small, which needs time for nitrogen fertilizer; the whole plant grows slowly, which needs to use potassium fertilizer; if it needs to keep the seed, it needs to use phosphorus fertilizer. The frequency of use is twice a month
Primroses need a large amount of light during their growth, especially in spring, so they need more light. However, it is not resistant to strong light, so we need to avoid strong light in the process of maintenance, only give astigmatism, the daily exposure time can not be less than six hours.
Spring is the growth period of plants and pests. We need to do a good job in pest prevention. If we find that its roots are infected with pests, we need to dig out its roots, clean up the pests, and then replant it. If there are pests on the branches and leaves, we can spray it with professional insecticides.
In spring, it needs more water than any other time, so it needs more watering. The amount of watering is based on the standard of fully watering the soil. The interval between watering is about three days.
