Blackberry sizaya is famous for its very high healing properties, literally all its parts are used in folk medicine. As for its leaves, they have an astringent effect in case of food poisoning and ulcer disease, as well as in the case of gastritis and diabetes. They are able to resist various infectious diseases, such as angina, and have a calming effect on neuroses. With hypertension, blackberry can serve as a good diuretic. Fresh blackberry leaves heal lichen and wounds well. Blackberry has not received as much attention from gardeners as its closest relative -raspberry, however, it is considered to be completely superior to it in terms of medicinal properties. The content of tannins is especially high in blackberry leaves, the share of which reaches 20%. You can also find in them such useful elements as ascorbic acid, amino acids and various mineral substances.