Hi all, I am new to the forum but not gardening. This is my first year experimenting with bee balm. They are on there second year as i got them from the nursery and they were left over and winterized from the year before. I have the powdery mildew issue. They get half sun and half shade. They started to bloom in begining of july but only got a few blooms and kinda turned grey and stopped blooming and growing
. Is there a way to treat this to get more blooms out of it this year? I know the mildew does not kill the plant just affects the look. Any ideas would be greatly appreciated.