Companion Planting With Vegetables and Flowers

The right plant combos will save space and provide weed and pest control.

By Barbara Pleasant

Each spring, I grow legions of onions and shallots from seed, and my biggest challenge is keeping them weeded. Last year, I planted pinches of arugula between the short rows of shallots, and the leafy, fast-growing arugula smothered any weeds and showed remarkably little damage from flea beetles, which often plague it. The arugula was ready to harvest just when the shallots needed room to grow. In a eureka moment, I realized I had discovered a vegetable companion-planting partnership I could use year after year to make my garden healthier and more productive.

The idea of “companion planting” has been around for thousands of years, during which time it has become so besmirched with bad science and metaphysics that many gardeners aren’t sure what it means. The current definition goes something like this: Companion planting is the establishment of two or more species in close proximity so that some cultural benefit, such as pest control or increased yield, may be achieved.

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