Fava bean seedlings and cold tolerance
So I'm about to leave town for 4-5 days for Thanksgiving, and it's going to get quite cold (for this part of GA) while I'm gone, low 20's almost every night. I planted some Windsor Broad Beans in a raised bed a few weeks ago, and on average they're about 3-5 inches tall now. I know fava beans thrive in cold weather, but can seedlings that young and small handle such cold weather with likely freezing? I have a plastic cover I've been putting over them on cold nights, but I don't know if leaving it on all night and day while I'm gone would do more harm than good. Any thoughts?