Lettuce is the second most popular vegetable in the country! Any lettuce is a great choice and iceberg or Romaine are the most common. Lettuce is in season for Illinois from April through October.
Lettuce

Lettuce Nutrition
Lettuce is low in calories, high in vitamin A, and a good source of folic acid.
Choosing and Storing Lettuce
Choose lettuce that is green and fresh. Avoid lettuce that is limp or has cuts, bruises, or browned areas. Refrigerate lettuce in a plastic bag for up to a week.
Food group:
Vegetables
Food season:
Spring
Summer
Fall