What crops did they grow in medieval times?

The cereal grains, oats, rye, barley and wheat, were important. Root vegetables were grown and stored over winters. Fruit was grown and eaten fresh, dried, or made into wine or cider. Cabbage family plants were grown, as were peas and fava beans. Fresh greens, such as lettuce, were grown. Certain spices and seasonings were grown in Europe, most importantly mustard.