Native Americans all over the U.S. and Canada use a term they call the Three Sisters to describe the Native American way of life through the gardening technique of planting corn, beans and squash together on the same mound. These Three Sisters - corn, beans and squash - supplement and compliment each other. The vines of the bean plant grow up the corn stalk. The huge leaves of the squash vines keep the ground moist for all of the roots. The nutritious vitamins from each of the plants escapes into the soil so that they each benefit from one another.