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Brussel Sprouts Companion Plants - What to Grow and What to Avoid

Unlock the benefits of companion planting for Brussels sprouts! Boost yields, deter pests, and enhance garden health with these tips.

companion planting for brussel sprouts

Would you like some help in the garden? Let the plants assist you by companion planting! This gardening strategy can amplify your harvest, enhance the soil, and reduce labor.

In this article, we'll look at the best companion plants for brussels sprouts, and which ones to avoid. Let's delve deeper into how you can maximize your yield with the right plant partners!

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Best Brussel Sprouts Companion Plants

The best companion plants for Brussels sprouts are ones needing similar growing conditions and those that repel pests. 

Excellent companions for Brussels sprouts include:

Companion PlantPrimary BenefitsAdditional Notes
BeetsDoesn't compete for magnesiumEasy to grow alongside Brussels sprouts
AlliumsRepels aphids and other pestsIncludes garlic, onions, leeks, and chives
MintDeters pestsGrow in a container to prevent spreading
DillAttracts beneficial insectsAttracts ladybugs, hoverflies
SageAttracts beneficial insectsAttracts parasitic wasps
ChamomileEnhances flavorSome gardeners swear by it
RosemaryKeeps away cabbage mothsGood for other brassicas too
NasturtiumsRepels and traps pests, retains soil moistureAlso attracts pollinators
French MarigoldsDeters pests and inhibits root nematodesAdds color and attracts bees

Worst Companion Plants for Brussels Sprouts

Knowing what plants to avoid is just as important! Don't plant Brussels Sprouts near these other vegetables:

Plants to AvoidPrimary ConcernsAdditional Notes
Other BrassicasAttract the same pestsIncludes cauliflower, broccoli, cabbage, and kale
StrawberriesCan inhibit growth and attract pestsSpecifically attracts slugs and snails
TomatoesCompetes for nutrientsBoth are heavy feeders
PeppersCompetes for nutrientsBoth are heavy feeders
EggplantsCompetes for nutrientsBoth are heavy feeders
PotatoesRoot disturbance during harvestingHarvesting potatoes can disrupt Brussels sprouts

Things to know about growing brussel sprouts

This classic winter vegetable is usually planted in late summer or early fall, although it can also be planted in spring in cooler climates. You can grow brussel sprouts from seed or buy them as established plants at your local garden center.

Their mini cabbage-like buds grow along a tall central stalk, and a light frost before harvest can make them especially tasty.

brussel sprout plants ready for harvest

However, just like their brassica relatives, Brussels sprouts are vulnerable to various pests. The most serious pests of Brussels sprouts include the diamondback moth caterpillar, cabbage worms, and cabbage loopers. Therefore, the best companions are ones that repel these insects.

cabbage worms destroying crops

Brussels sprout plants don't like disturbance around their roots, so consider this when you plant other crops nearby. They also grow best when not planted in a spot where other brassicas recently grew, so be sure to rotate vegetables in this plant family for the best results.

As heavy feeders, they also require regular watering and nutrient-rich soil. Dry soil can produce a less tasty flavor in the sprouts. They also need a relatively high N-P-K fertilizer several times as they grow.

Tips for Companion Planting with Brussels Sprouts

Companion planting might seem like a simple concept of placing two plants side by side, but the effectiveness of this strategy requires a little more foresight. Here are some practical guidelines to optimize your Brussels sprouts' growth and health with companion plants.

Planting Distance

It's not just about which plants are placed next to each other but also how close they are. Ensure you give adequate space between Brussels sprouts and their companion plants to allow for proper root spread and growth. Generally, a distance of 12-16 inches is a good starting point.

large vegetable garden with proper spacing


While Brussels sprouts and their companions might be perfect partners, they might not have the same growth rate. Plant faster-growing companions a few weeks after the Brussels sprouts, so they don't overshadow or out-compete them.

Other plants may be ideal companions, but they grow at different times of the year. Choose vegetables, herbs or flowers that will provide the most benefit in the spring or fall.


Using organic mulch around your Brussels sprouts and companions can help retain soil moisture, suppress weeds, and regulate soil temperature. Straw, pine needles, or shredded leaves can be effective mulching materials.

straw mulch in vegetable garden

Crop Rotation

Pay attention to how your plants interact. If you notice that a companion plant isn't benefiting the Brussels sprouts as expected, consider trying something else next season. Also, practice crop rotation to prevent soil-borne diseases and pests from building up.

Harvest Carefully

When harvesting plants grown close to Brussels sprouts, be gentle to avoid disturbing the sprouts' roots. Using a fork instead of pulling can minimize root damage.

Interplanting and Succession Planting

If you've limited space, interplant faster-growing crops (like radishes) among slower-growing Brussels sprouts. Once you harvest the fast growers, the sprouts will have more room to expand.

brussel sprouts growing in a raised bed

Succession planting can also be employed, planting a subsequent beneficial crop after harvesting the preceding one.

Natural Barriers

Consider using taller companion plants to act as windbreaks for Brussels sprouts, especially in areas with strong winds. This can reduce wind damage and help the sprouts grow upright.

Remember, nature is dynamic, and what works in one garden might not work in another due to variations in soil, climate, and local pests. By being observant and adaptable, you can refine your companion planting strategy to best suit your unique garden environment.