Black Eyed Susan - Spots on Leaves
Hello Group, this seems to happen every year on a particular planting of black eyes susans. The leaves get large black spots on them, and the plany never thrives. It happened last year when it was first planted and I figured it would go away in subsequent years. Well, its coming along nicely and I noticed the larger leaves are getting the spots. WHAT TO DO?!?!? I can post pictures is this would help.
Im in NY, 50 miles north of the city.