So, a few years ago (about 3) I planted some lemon seeds in pots in thy backyard. Now, I have five baby lemon trees. They were doing amazing, dark green, waxy leaves and generally just very healthy. But, let's just say, the area in which I live is rainy and cold. We don't often get snow so they were doing great, but with the current winter weather. Let's just say it did indeed snow this year. They were in a flimsy little greenhouse that has finally broken. It had a few tears in it anyways, so cold air did somewhat get in there (Otherwise it did work, even though I used the word flimsy). But it got worse with the layers of snow piled on it. Now, the five are in my room, but the leaves are yellow and drying up. I haven't had previous experience with lemon trees so I'm not sure what to do. Please help my children.