Three sister planting

The three sisters are traditionally corn, squash, and beans, three plants that are excellent garden companions.  When this Native American planting method is followed, the corn provides something for the beans to climb on; the beans fix nitrogen, making the soil richer in necessary nutrients; and the squash vines help hold moisture by shading the ground and the roots of the corn.

This can also be done for what we call companion planting, growing vegetables that improve the soil structure/texture for the next vegetables that are grown, e.g. onion to potatoes.