This big 60 piece set features the fascinating Native American horticultural system known as The Three Sisters. This companion planting system utilized corn, squash, and beans. Corn served as a pole for the beans to climb, while squash sprawled along the ground blocking the growth of weeds and creating a micro-climate that slowed the evaporation of water from the soil. Sometimes a "fourth sister" was added in the form of a pollinator attracting plant such as rocky mountain bee plant, and dead fi