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Three Sisters Method
Native Americans relied heavily on winter squash, such as pumpkins, corn (maize), and climbing (or pole) beans for both food and trade goods for several hundred years. This successful growing method spread west and south to what would become Utah, Colorado, Arizona and Mesoamerica.
Benefits of the Three Sisters Method
Planting these three sisters together allows them to benefit each other in several ways:
In some areas, a fourth plant was added to the mix. This was usually a flowering plant used to attract pollinators, such as honey bees, to increase yield. Just as the three plants benefit each other as they grow, eating them together provides fatty acids and the eight essential amino acids needed to form complete proteins.
Planting by the Three Sisters Method
Rather than planting in rows, the Three Sisters Methods calls for flat-topped mounds, 12” high and 20” wide. Several corn seeds would be planted in each mound. In some areas, rotten fish or eels would be added at the same time, to act as fertilizer. Some areas planted all three types of seeds at the same time. Others would wait until the corn was 6” tall before adding squash and beans. Seeds would be alternately planted around the corn. Two types of beans were used: common beans (Phaseolus vulgaris) and tepary beans (Phaseolus acutifolius), which are more drought tolerant.
You can create your own Three Sisters garden design using the same companion planting concepts. Since corn has higher pollination rates when planted in blocks, rather than rows, you can set aside an area of the yard, or a raised bed, as your very own Three Sisters garden.
The corn will grow up, the beans will climb the corn and add nitrogen to the soil, while the squash protects the ground with its wide leaves. Come autumn, your family will be able to enjoy a high protein meal of beans and corn with a side order of baked or steamed squash, with very little effort on your part.
Give it a try this growing season and see how well it works for you!
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