Sunflower is a well known oily plant, that when it begins to pollinate presents a very important bee pasture. Sunflower flowers give bees during favorable year abundance of nectar and pollen powder. It blooms in the beginning of July and lasts for 20 days. Nectar is mostly secreted during warm days and with morning dews at a temperature of 24-30 C. It acts beneficially for stomach-intestine, lung, and kidney diseases, and especially for diseases of the heart and blood vessels.