Horseradish has a characteristic pungent odor that repels pests like Colorado potato beetles. Its deep taproots also help to break up compacted soil, making nutrients more accessible.
Potatoes need a lot of nitrogen to grow well. As legumes, beans help fix nitrogen in the soil. They also act as ground cover to maintain soil moisture and reduce weed growth.
Cabbages are great companion plants for potatoes because they’re non-competitive plants with shallow roots.
They give your garden great aesthetics, prevent the growth of weeds, and their roots release a chemical compound that suppresses the growth of nematodes — a serious potato pest.
Its aromatic leaves attract beneficial insects that keep harmful pests like Colorado potato beetles in check.
Chives are a practical addition to your potato garden. They love full sun and well-drained soil and grow well in USDA Zones 3–9. Their mild onion scent helps ward off aphids and other pests, making them a great natural line of defense.
Lovage might not be a common garden plant, but your potatoes will love growing next to it. These perennial herbs are very easy to grow and thrive in USDA Zones 5–8, in moist, well-drained soil with full to partial sun.