I use winter rye. Green manure is needed in this part of central Missouri.
Planted cabage, peas and green beans a couple weeks ago as fall garden crops. Weather has been on the cool side, so not sure if there is going to be any late season vegetables. Expecting an early hard frost.
Eugene: Cabbage, Califlower and Brocclii can take pretty cold temps(not sure about the peas and green beans though the green beans are really putting on in this cool weather). I am going to make some hoops from 12.5 ga electric fence wire ( I have it on hand) and low hoop the cabbage, califlower and brocclii. I understand iy you put plastic over the hoops the cole crops will withstand and produce down to about 20 degrees. This is a new experiment for me, so we shall see?