Due to the high temperature in summer, the flowers in the semi-dormant state such as the rose, cyclamen, etc. should stop fertilizing, and then start fertilizing after the temperature drops and resume growth; for some high temperature resistant flowers such as zinnia, periwinkle, cockscomb, Gladiolus, sunflower, etc., summer is the peak season for their growth and flowering, fertilizer should be used normally. However, due to the high temperature during the day in summer, the fertilization should be selected in the morning or evening, and the concentration of fertilization should also be controlled to prevent root burning. Immediately after fertilization, rinse the leaves of the flowers with water to prevent the oil from splashing on the leaves. The aquatic flowers such as water lilies and bowls can be fertilized normally in summer. The fertilized fertilizer can be buried in the root soil without burning roots. The phenomenon of burning leaves.