What are companion plants for Brussels sprouts?
Written by
Paul Reynolds
Reviewed by
Prof. Martin Thorne, Ph.D.Companion Plants for Brussels Sprouts Companion plants for Brussels sprouts are planted for their health benefits and pest deterrence. They mostly provide pest control or can share nutrients. Pairing plants together opens the door to harmonizing elements in the yard. Companion plants provide pest deterrence. Companions Benefit Soil in Other Ways Too Plants that do not get along are fond of taking everything, pestering other plants, and not taking their turns.
Aromatic Herbs - A row of aromatic herbs serves as the first line of defense against many common pests. Plant plenty of thyme between a row of sprouts, and cabbage worms will steer clear of its strong scent. Mint throws the insects off their job, but it should be planted in a container so that it does not take over the entire garden. The herb also attracts ladybugs, among other "good" insects that feed on the aphids.
Pest Repellents
- Onions and garlic deter aphids
- Nasturtiums trap cabbage moths
- Dill attracts beneficial wasps
Nutrient Partners
- Beets share phosphorus efficiently
- Celery improves calcium availability
- Spinach provides ground cover shade
Structural Supports
- Corn creates windbreaks
- Sunflowers offer afternoon shade
- Peas fix nitrogen in soil
Given that alliums, such as onions, are so effective against aphids, it's a good idea to plant them in alternating rows with Brussels sprouts. The sulfur compounds they naturally emit repel sap-sucking insects. It's also a great use of space since Brussels sprouts take up a lot of room. Just ensure that you pick your onions early so they don't compete for the same nitrogen later on.
Avoid bad companions that will injure your sprouts. Strawberries spread verticillium wilt through shared soil. Tomatoes draw hornworms that will devour sprout leaves if they stray your way. Pole beans will enrich the soil with nitrogen, resulting in dwarfed Brussels sprouts. They should be at least 3 feet from your sprouts.
Use spatial strategies: grow giant sunflowers to the north of your sprouts for shade in the afternoon, or surround the plants with a layer of low-growing chamomile to thicken the wetness. Such multiple layers create a series of microclimates that favour growth and act as pest deterrents through the seasons.
Companion plantings should be rotated annually so that they can keep the soil healthy. Plant the pest-repelling herbs in a new bed every year. In this way, you will avoid a buildup of disease while assisting nature's protective system. Regular companion planting will ensure you have the healthiest Brussels sprouts with little extra effort.
Read the full article: How to Grow Brussels Sprouts Perfectly
