USDA Hardiness Zone 6B stretches across parts of Kentucky, Virginia, southern Pennsylvania, and central Missouri, with average annual minimum temperatures between -5°F and 0°F. The growing season extends to approximately 193 frost-free days, from a last spring frost around Apr 10 to a first fall frost near Oct 20. This is one of the more forgiving transitional zones: warm-season and cool-season crops both perform well, and the late October frost date gives fall gardens a substantial runway for brassicas, root vegetables, and overwintering garlic. For a personalized forecast based on your specific zip code, use our free planting calendar. Browse individual plant guides for detailed growing instructions, or explore how USDA zones work to better understand your growing conditions.