The clay here doesn't get dry like that, could be our humidity, but it will not drain. It is so dense that there are places that the water just sits for hours because it won't soak in. I was tilling the ground one day after it had rained the day before and it was like walking through quick sand; I have a walk behind tiller. I kept sinking down and getting stuck in the soupy muck. That's one reason we have raised beds here. If we didn't the daylilies would sit in this muck and rot.