THE THREE SISTERS: THE AGRICULTURAL SECRET OF INDIGENOUS PEOPLES Long before the arrival of fertilizers and modern agriculture, the Indigenous peoples of the Americas had already developed a perfect system: the co-cultivation of corn, beans, and squash. This method, known as The Three Sisters, operated symbiotically: The corn provided support for the beans. 齃 The beans enriched the soil by fixing nitrogen, benefiting the corn. The squash, with its broad leaves, covered the soil, helped retain moisture, and prevented weed growth. A natural balance that is efficient and sustainable, devised centuries before science could explain it. A testament to ancient wisdom that still has much to teach us today.