Hydrangea Leaves Turning Reddish/Purplish Brown
I hope some of you guys can help me with this problem. I have 4 potted Hydrangeas and the leaves are either turning yellow, has brown spots, turning a strange purplish color or wrinkled. I have attached some photos which might help with answering. The plants were on the balcony where it gets half a day's sun but I moved them to a shadier spot thinking that the leaves are sunburnt. Any help will be appreciated. Thank you.