Hearth & Home
Why the Three Sisters Works: The Traditional Polyculture That Extension Agronomics Can Explain
The Three Sisters polyculture, a traditional Iroquois system of planting corn, beans, and squash together, is scientifically validated for its distinct ecological functions. This method provides structural support, nitrogen fixation, and living mulch, offering a benchmark for effective companion planting.
Aisha Bakri·November 1, 2026
