One of the best foods in the spring are nettles. Yes, they are the plant that can sting you and cause welts. If you pick them with gloves, when they are young or just the new growth throughout the year, they can be used similarly to spinach. Once they are cooked or adequately steamed, the stinging components leave and they are rich in calcium, iron, folic acid and many other nutrients. They can also be dried and used as tea.