Bulbs are smarter than you think. It takes more than a couple of warming days to get things going. Even in real spring weather, I look around wondering why certain lilies aren't up yet. It's a bit of a different story if we were to have several days of 80 degree days right now. That might be enough to be worried, but 40s? We are ok.
That said, January is typically the coldest nastiest month of our year here. Temperatures are miserable and there is snow. So it's been strange. Yes.
