It got down to 11 degrees here Tuesday morning so when I picked for market Thursday afternoon I wasn't sure which crops would make it even under row cover. Mizuna under one layer got touched enough to be unpickable. Napa under 2 layers was ok but outside leaves were damaged. Chard under 2 layers seems about done but a few inner leaves were fresh. Most lettuce under 2 layers was ok but some of the outside leaves died. Broccoli, cabbage and cauliflower was not dead but was soft. I didn't get a chance to check beets. Kale, spinach, tatsoi, arugula and bok choy were all quite good under 2 layers and have shown growth. Pea shoots under 2 layers were still alive and delicious. Turnips in the open didn't look great leaf-wise but were pickable. Carrots and parsnips were fine as well as leeks and scallions. Parsley, dill and cilantro under 1 layer were fine but had no growth. I plan on another picking of greens and carrots.