Winter has finally arrived in Tucson. As I write this post, it’s 32F outside, and there’s frost on most of the plants. Goodbye, rose in bloom. Goodbye, New Guinea impatiens. Goodbye, sunny orange zinnias. Fortunately, the tomatoes and basil are planted against the side of our brick house and appear to be unfrozen. The citrus trees look irritated, but they should be fine. We even harvested our first lemon! And nothing seems to stop the orange bells (the pretty flowers in the header pic). They bloomed almost all year, though they too look a little irritated at being so cold. Here’s what remains of the fruits (literally) of our labor:…