Growing in the hedgerows, in both town and country, is a rich source of vitamin C, A, E and K, and moderate levels of B-complex vitamins. Ready now for the picking, Blackberries also contain folate and essential minerals like potassium, manganese, copper and magnesium, and they have the magic phenolic flavonoid phytochemicals, aka antioxidants. Take a plastic container and pick all you can eat. Best used fresh, don’t soak, but do wash them. Another benefit, less than 110 kcal per 100g, and you can make your own wine.