Indoor Gerbera Daisy Pots Have Leaves With Gray Mildew. Why

Question

The pots sit by window. And they’re blooming. Is it rot???

Answer 1

The leaves need to be kept dry. It may have a case of downy mildew. Remove the infected leaves if it's just a few. Here is more:

https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm

https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/gerbera-daisies-indoors.htm