Can chemical fertilizers for agriculture be applied to flowers? Using the right method is key

Chemical fertilizers for agriculture can be applied to flowers, but the amount must be appropriate; in general, the concentration must not exceed 5%, otherwise it will burn the flower roots and, in severe cases, cause the flowers to wilt and die. In the narrow sense, flowers refer to blooms and grasses of various colors and types; in the broad sense, they refer to ornamental herbaceous plants, including groundcover plants, flowering shrubs, flowering trees, bonsai, and greenhouse ornamental plants.