hydrangea

Question

We have a hydrangea that has bloomed for years and although it has flowers, it also has black spots on its leaves. What can we do?

Answer 1

Here is a link that will help you.
https://www.gardeningknowhow.com/plant-problems/disease/black-spot-fungus.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm