The temp last night only got down to 23 so it was not as cold. Although I foolishly brought the banana and lemon trees outside yesterday to water them. Needless to say I forgot about them until 4AM and as you guessed., they may have froze. I do know at this time that the leaves are dead but that does not necessary mean the plant is dead. We will know in a few weeks or in spring. On a good note. The seeds have started germinating. Two varieties of peas and a variety of beets have poked through the soil. We may have veggies this year!