In the Iroquois legend of the Three Sisters, beans, squash and corn grow together, thriving through the Native American practice of companion planting. Today, pure strains of Native crops are hard to come by. Seed Saver banks in Decorah, Iowa, and Tucson, Arizona, store precious seeds from long ago plants. In the harmonious colors of ancient corn varieties, a balanced pattern of rows echoes the ancient gardens, with arrows pointing in two directions, towards the past and the future. Unnapped.