My radishes don't plump. I get long red roots above ground but they are
only about an eighth of an inch in diameter. The radished germinate very
quickly. They have large leaves but they don't have any flesh. The
garden is fifteen years old. It is basically clay but compost is dug
into it every year. There are worms in the soil. What do I have to do to
get these little suckers to plump up?