What types of potassium fertilizer are suitable for flowers

Potassium fertilizers used for flowers include potassium chloride, potassium sulfate, monopotassium phosphate, sylvinite, potassium-magnesium salt, and others. Among them, potassium chloride is a quick-acting fertilizer that is easily soluble in water. Monopotassium phosphate is often applied as a foliar spray, which can effectively supplement phosphorus and potassium, promoting more abundant and more vivid blooms.