There are four main reasons for the root rot of hydrangea in endless summer: first, watering too much and too often; The other is excessive fertilization burning roots; The third is poor ventilation; The fourth is the flowerpot, and the soil is airtight.
After the root system of hydrangea rots, it is necessary to get out of the basin in time to trim the rotted root system, then soak it in a solution of thousands of Gifu Meng for 30 minutes, fully disinfect it, dry it in a cool and ventilated place, and then put it on the basin. Don't let the hydrangea with rotten roots bloom. Prune all flowers and buds to save nutrient consumption, and plants will recover faster.