1、 Fertilization in spring and summer

Spring and summer is its peak growth period. At this time, it has a great demand for nutrients and needs to apply fertilizer with sufficient nutrients. In terms of fertilizer selection, if conditions permit, professionals can be allowed to allocate fertilizer where plants are sold. You can also make your own fertilizer and ferment the rice washing water, which is its natural nutrient. Just add fertilizer twice a month. In order to make the plant grow better, nitrogen can be added to the fertilizer, which can make the leaves of sunflower big and bright

2、 Autumn and winter fertilization

In autumn and winter, the sunflower enters the dormancy period. At this time, its demand for nutrients is not high. Generally, fertilization is not required. If fertilization is applied, it should not be more than once a month, and the amount does not need to be too much. Moreover, fertilization should be at a distance from the root to avoid burning the root. After fertilization, water should be poured on the fertilizer, so that the water can diffuse with the fertilizer in the soil to facilitate plant absorption

3、 How to fertilize the new one

If you buy a plant with old soil, you don't need to apply fertilizer within half a year, because its old soil is rich in nutrients and can meet the needs of half a year. If there is no old soil, do not apply fertilizer for the time being, because the newly transplanted plant is very weak. Put it in a cool place for a week, and then apply fertilizer when it adapts to the new environment