Well, I did not know it could be too hot to water a daylily. I always thought the hotter it was the more water they needed. Here it seems when the summer is really hot and very dry I can never water the ones in the drier beds enough. That is the main reason I have most of my daylilies planted now in a bog bed. I am on the verge of losing 'Jason Mark' which was severely stunted when I planted it during the hottest part of the summer, provided it with no shade, and did not get enough water to it (it just happened to be planted in the driest spot in the bog). Plus the poor plant was dug up several times by critters before it could get established.