I suspect your hydrangea was exposed to some kind of soil-borne disease, such as Phytophthora root rot. It is important to test your soil before replanting, as many plants succumb to that disease. If it is in the soil, the soil should be replaced before you plant anything.
Hi Medha,
I suspect your hydrangea was exposed to some kind of soil-borne disease, such as Phytophthora root rot. It is important to test your soil before replanting, as many plants succumb to that disease. If it is in the soil, the soil should be replaced before you plant anything.