In the world of dreams the rules of reality do not necessarily apply. Each dream is unique and it's a direct link to the soul and spirit. Psychology provides its own theories on what dreams mean, but so did tradition and the study of dreams for thousands of years before any relevant science had developed.
Dream Meanings - Artichoke
If you dream of an artichoke, you will go through some difficulties. If you eat an artichoke, sorrow and suffering await you. If you are offering someone an artichoke you will cause them to feel bad.