Don't be fooled. It may feel like winter, but I sowed my flats of tomato seed last Friday, so spring can't be many days off. First time I've tried Katana, but they grow well in Hokkaido, so they ought to thrive here. Katana tomatoes have been developed to be especially disease and mildew resistant, and have fine texture and flavor. They can take the heat and are cold tolerant enough to get an early start. This may be the mountain tomato I've been looking for.