I'm also thinking I may have over watered it. We haven't had much rain over the last few weeks so I have been going out in the mornings and watering all the gardens. When it was limp I started focusing on it. That may be what has made it worse, according to my googling. Thank you. I'll deadhead it once the blooms are completely off and then leave it alone for a bit. It got some new mulch last weekend so hopefully that helps as well.