Why do my perennial dianthus flowers have a brown patch in the center of the plant

why do my perennial dianthus have a brown spot in the center of the plant

Submitted by mmarycwm

Dianthus perform best in cool, dry conditions. They will take heat if it is dry, but high humidity can lead to some disease problems. Poor soil drainage could also cause the type of dieback that you describe.

Answered by DSchrock