Outdoor vegetable and fruit growing is negatively impacted by the rapid temperature decrease with cold and frost at night, but the rise in heating expenses of greenhouse production is unavoidable. The story of the days of the blackbird, which correspond to January 29, 30, and 31, is confirmed by Coldiretti's warning about the impacts of poor weather. According to folklore, the latter days of January had the coldest winter temperatures of the year, so much so that even the blackbird, which used to have white plumage, went to warm up and huddled in a fireplace, and its coat became gray from soot. Winter crops in the field, such as cabbage, cabbage, chicory, and broccoli, are impacted by the coming of the great cold. These plants can resist temperatures a few degrees below zero, but if the temperature drops too quickly or the frosts last too long, damage ensues. Concerning as well is the increase in greenhouse heating expenses for the growing of vegetables and flowers, which is impacted by the mounting bill.
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