This morning my son asked why some plants, like trees, are so tall while other plants are so small. I explained to him nature’s balance and related it to the Three Sisters Gardening that I do. How both the popcorn and pumpkins consume nitrogen from the ground while beans put it back in. How the beans also climb up the corn plant to reach the sun. The pumpkin vines and leaves will shade the ground which both retains moisture and shades out the weeds. It is a technique long used by Native Americas long before my ancestors arrived on this continent.