1. Spring: spring is the peak season for its growth. It has a large demand for nutrients, so it needs more fertilizer. But pay attention to a small number of times, fertilization is best in the morning or evening, so the temperature will not burn the root, the frequency is once a month, fertilizer choose diluted nitrogen fertilizer water can
2. Summer: this season is its flowering time, during which we must pay attention to fertilization. The amount of nitrogen fertilizer should be reduced in the first month of flowering period, and P and K fertilizer should be applied once a half month, so as to promote flowering. During flowering, fertilizer application should be stopped. After flowering, phosphorus and potassium fertilizer should be applied to supplement nutrients.
3. Autumn: its growth rate will gradually slow down in autumn, and the amount and times of fertilizer should be reduced. Apply a thin fertilizer once a month, and stop fertilizing in late autumn. It's best to apply fertilizer in the afternoon with proper temperature.
4. Winter: in winter, it will sleep and stop growing. At this time, do not apply fertilizer, because the root system will not absorb nutrients, but the fertilizer will burn the root system and cause damage to it.
The flowers of scallion bloom in summer, the specific time is between July and September. Its flowers are solitary, with six quilt pieces, and the color is white.