
No matter what type of hydrangea you are growing, there is a long list of diseases that could potentially threaten them. Whether it be fungal or bacterial problems, all parts of the hydrangea can be hit and there is nothing that can be done but remove plants if some diseases strike.
Hydrangeas come in many species and varieties, with their large and showy flowerheads hugely popular among gardeners. They are highly versatile, easy to grow, and are great options for shady areas of the backyard.