My Hydrangea Leaves Are Yellowing With Large Dark Brown Spots
What do I do? Also, flowers are browning and falling off. I live Costa Rica and the nursery I bought it from said they grow here and will be fine. Is it getting too much water? The plant gets mostly shade all day.
These articles may help: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/common-hydrangea-diseases.htm