If you are in the south, the blooms may be getting old.
45+ Hydrangea Stems Brown Spots. Then the leaves of the plant will start to be distorted and rolled, and the growth of the plant will be stunted. Aphids do not spread this disease.
Hydrangeas Forum Red Spots On Stems Garden Org from garden.org
It manifests as orangish/brown spots on the backs of leaves. Hello, i got this hydrangea last week as a present and i've watered it, but it is showing signs of. But anyway, i'll assume the plant is new and you have winter where you are, but it's a mild winter area i'm assuming, and the brown spots are nothing more then the plant if it's new going through shock or it is.
Are other hydrangeas in the garden having this problem?
Then the leaves of the plant will start to be distorted and rolled, and the growth of the plant will be stunted. To fix, deeply water hydrangeas once a week. If your hydrangea has brown spots or rings on its leaves, there is a good chance that it is infected with hydrangea ringspot virus. Tan spots with reddish brown borders form on the leaves.
