Can flowers use compound fertilizer?

Compound fertilizer can be used to grow flowers. Fertilizing in the planting land: when applying fertilizer, you can dig holes or grooves 20-30 cm away from the flower plant, and then apply the fertilizer, cover the soil layer and water thoroughly after fertilization, in order to prevent root burning.

Fertilizing in the flowerpot: make as many holes or soil holes as possible in the middle of the flowerpot before fertilization, so that the fertilizer can be dispersed during fertilization to avoid fertilizer damage caused by excessive concentration of fertilizer.