I never really expected them to last as long as they did, (Holy crap my basil plants quadrupled in size). I assumed it's too cold for them to grow, yet I googled all the herbs, (oregano, basil, rosemary, and thyme) and it said that they are "cold weather herbs". I'm confused. Do you have to do something special for them in the winter? Feed them hot chocolate and knit them sweaters?