turnips will not get any serious use untill after a hard killing frost that is when the sugars develop in the foilage, untill then they are a bitter
That's what I read as well. But that's not what I experienced. The deer were eating the greens all summer. They were also eating some of the bulbs in the summer. And there was a 10 acre clover plot only 100 yards away, as well as a orchard and lush green clear cuts.
Here's our plot.