Companion Planting Strategies: Boost Yields and Save Space in Your Garden

Limited space? Companion planting pairs crops that help each other—like the Native American "Three Sisters": corn, pole beans, and squash. Corn supports beans; beans fix nitrogen; squash shades out weeds.

Two Types of Companion Planting

Edible companions: Interplant vegetables with mutually beneficial relationships. Non-edible/soil-building: Use cover crops like red clover under tall crops to fix nitrogen, suppress weeds, and improve moisture.

The Three Sisters Method

Build a 4" high, 18" wide mound. Plant 4 corn seeds 6" apart, 3" deep. When corn is 4-5" tall, plant 4 pole beans halfway down the mound sides. Simultaneously, build small mounds at the base and plant 4 squash seeds each. Direct squash vines for ground cover. Adjust spacing for your garden size.

Clover Understory

Red clover adapts widely, builds loamy soil, adds nitrogen, suppresses weeds, retains moisture. Undersow into standing corn, tomatoes, peppers. Can be hard to terminate—plan accordingly. Cold-tolerant cover crops can follow summer crops, protecting soil until frost.

Whether edible or soil-building, companion planting maximizes space and reduces labor for a more productive garden.