Hanging on through winter

I noticed yesterday, as the snow melted away near the house, that my late-season cilantro is still alive. I know it was a cool-weather plant, but I didn't realize it could survive a winter like the one we have had. The stem base seems very thick, and there is a tight pack of fresh greenery forming in the center. I suppose that as soon as the temperatures are regularly above freezing, it will grow into a big healthy cilantro bush.