Why is it wilting?
My Dahlia looks as though I haven't watered it well. It wilts during warmer part of the day here in the San Francisco Peninsula. It gets plenty of water. The soil has ample organic matter. I have even given it a shade with an overhead burlap screen and it still wilts. It is about 18 inches tall with numerous stalks and flower buds and looks very healthy otherwise. I thought Dahlias took full sun. Do you know why it wilts?