We have the blue salvia perennials and they bloom in late April here in TN. They are just gorgeous then, but when early to mid June and throughout the summer they look terrible. They get sun all day and are watered and allowed to dry out to about a 1/2 down. I deadhead them and then they look worse. We did around them and it just looks like we don't take care of them. The blue salvias are one of our favorite flowers. We are about ready to dig them up but I don't want to do this. I want to fix the problem and hopefully with your help we can do this. Thanking you so much in advance and I appreciate any suggestions.