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– Potatoes – Dill – Yarrow – Cosmos – Marigolds
Aphids, spider mites, whiteflies, Mexican bean beetles, and other pests are among the enemies of beans. Thankfully, some trustworthy companion plants can keep each of these pests at bay.
Because they release biochemicals that might impede other plants’ development, beans are considered allelopathic plants (PDF-usda.gov). Onion, leek, chives, and other onion family members don’t go well with beans.
Bush beans are compact plants that typically require little to no staking and grow between 12 and 24 inches (31 and 61 cm) tall. However, runner or pole beans need a trellis or teepee to climb on because they can grow a height of 10 feet (3 meters) or higher.