BIOPON Hydrangea Fertilizer 1kg A multi-component mineral fertilizer designed for fertilizing hydrangeas. The phosphorus content stimulates the formation of buds and extends the flowering period. The presence of potassium increases the resistance of plants to freezing. Properly selected content of micro and macroelements guarantees proper growth and healthy appearance of the plant. INGREDIENTS: NITROGEN 5%, PHOSPHORUS 10%, POTASSIUM 21%, CALCIUM 2%, SULPHUR 18.5% + micronutrients