Last fall I planted some seed in a container that has a mixture of potting soil sand and a water holding medium. I planted the seed about two inches deep. I took the container and placed it in another container that keep it about two inches from reaching the bottom of second container. In both containers I drilled holes to let the standing water out. They set like that all winter in my house. About a month ago I took them outside a set them on top of a concrete bench. I dug one up yesterday and it was as hard as the day I put it in. Should I take the top container (with seed) out of the other one and place on the asphalt pavement to give them more heat? If I do that it seems as if the water will dry out fast and I would have to water three or four times a day. I am now watering them late in the day.