Black Eyed Susans
In May I planted about 12 Black Eyed Susans that my sister gave me as she was thinning hers out. Up until last week they were doing fine. Not flowering, but bushing up and looking healthy. Yesterday I looked and the leaves are browning, not brown as in drying out, just dark brown and green leaves. Does anyone know what this could be? Sorry, no pics. I don't see any bugs on them. Other perennials in the bed are fine. I thought these were real hardy. I was really looking forward to them. Does anyone have any ideas as to what might be wrong and suggestions as to what I could do? Thanks.