Q.Coreopsis Early Sunrise
My early sunrise plants are wilting and browning at the roots. it was doing great at the beginning of the summer. It gets full sun. However, I’m not sure if it’s getting too much water or too little water would anyone know from the look of this picture.
Certified GKH Gardening Expert
It looks like it is receiving too much water.
The soil needs to be able to dry out, thoroughly, down to about 2 or 3 inches into the soil between waterings, even in the heat.
From here, a fungicide, and correcting the overwatering will be necessary.
Here are some articles that will help: