Most people who garden believe that the growing season lasts until the temperature drops below freezing and the dew turns into frost. This is not entirely true; some regions (USDA zones 0-2) have a very short growing season that means they cannot grow vegetables outdoors unless they employ special techniques and plant seeds specially designed for that climate. However, most people, even those residing in places where snowfall occurs every winter (such as Ontario), can continue to garden throughout the entire calendar.