Broccoli Companion Plants: What to Plant & Avoid

March 6, 2026 Bill Hageman

Ripe green organic broccoli in the vegetable garden

Broccoli Companion Plants: What to Plant With Broccoli and What to Avoid

Broccoli is a productive cool season crop, but it does not thrive in isolation. Thoughtful companion planting for broccoli improves soil health, reduces pest pressure, and makes better use of space in the vegetable garden. Choosing the right broccoli companion plants can mean fewer cabbage worms and stronger, healthier heads.

This guide explains what to plant with broccoli, what to avoid planting nearby, and how to plan your beds for long-term success.

If you are selecting varieties, you can explore our full collection of broccoli seeds to match planting times and harvest goals.

Green broccoli plant seen from the front in the middle of a planted field

Why Companion Planting Matters for Broccoli

Companion gardening broccoli is about more than saving space. Broccoli is a heavy feeder. It draws significant nitrogen and other nutrients from the soil. When planted next to crops that compete for nutrients, growth can suffer.

Broccoli companion planting works best when neighboring plants either:

Improve pest control
Attract beneficial insects
Do not compete heavily for nutrients
Occupy different root zones

Understanding these relationships helps you choose the best companion plants for broccoli.

For planting basics, review our detailed guide on how to grow broccoli or watch the step-by-step overview in our growing broccoli video.

Well-tended garden with lush lettuce and broccoli plants

Best Companion Plants for Broccoli

When choosing companion plants for broccoli, focus on diversity. A mixed planting reduces pest buildup and improves airflow.

Aromatic Herbs

An aromatic herb such as dill, rosemary, thyme, or sage can help deter cabbage moths. These herbs may confuse pests that target brassica plants.

Dill also attracts beneficial insects such as parasitic wasps that prey on cabbage worms.

Leafy Greens

Leafy green crops like lettuce and spinach grow quickly and have shallow roots. They do not compete deeply with broccoli’s root system. These are good companions because they mature before broccoli reaches full size.

Alliums

Onions, garlic, and chives can discourage certain insect pests. Their scent may help reduce pressure from cabbage moths and aphids.

Celery

Growing celery near broccoli can be beneficial. Celery occupies a different growth habit and does not directly compete for space in the same way other heavy feeders do.

Bush Beans

Bush beans are especially useful companion plants. Because they fix nitrogen in the soil, they may help improve fertility over time. While they still require nutrients, they are generally better neighbors than other brassica plants.

Plants to Avoid Planting Near Broccoli

Just as important as choosing good companions is knowing the bad companion plants for broccoli to keep out of your garden.

Other Brassica Plants

Avoid planting broccoli next to cabbage, cauliflower, kale, Brussels sprouts, bok choy, or other members of the cabbage family. These crops share the same pests, including cabbage worms and aphids, as well as soil-borne diseases like clubroot.

Growing them too close together increases pest buildup and disease risk. Rotate brassicas to a new area every year when possible.

Heavy Feeders

Broccoli is a heavy nitrogen feeder. Planting it next to other nutrient-demanding crops such as corn, squash, pumpkins, or potatoes can lead to competition for nitrogen and other essential nutrients.

This can reduce head size and overall vigor unless the soil is deeply amended with compost and balanced organic fertilizer.

Large or Sprawling Crops

Large vining crops like pumpkins and winter squash can crowd and shade broccoli. Reduced airflow and limited sunlight may increase disease risk and lower yields. Give broccoli full sun and adequate spacing to maintain strong growth.

With proper spacing, fertile soil, and crop rotation, broccoli will perform much better and experience fewer pest and disease problems.

Close up view of female hands holding freshly cut broccoli plant

Crop Rotation and Soil Health

Companion planting broccoli should always be paired with crop rotation. Avoid planting brassica plants in the same bed year after year. Rotating crops reduces soil diseases and pest buildup.

If you are planning your cool season garden, see Red, White and Broccoli for seasonal combinations.

After harvesting broccoli, consider what to plant after broccoli. Legumes such as bush beans or peas help restore nitrogen levels. This rotation strengthens long-term soil fertility.

Recommended Broccoli Varieties for Companion Planting

Different broccoli varieties respond similarly to companion planting strategies, but maturity timing can affect bed planning.

Strong options include:

Calabrese Broccoli Seeds (Organic): Reliable central head and side shoots, well suited for spring and fall.
Di Cicco Broccoli Seeds (Organic): Early and productive, pairs well with quick leafy greens.
Romanesco Broccoli Seeds (Organic): Larger heads benefit from proper spacing and airflow.
Rudolph Broccoli Seeds: Excellent for fall frost conditions.
Kailaan and Early Jade Gai Lan: Harvested for stems and leaves, fit well among mixed beds.
All Season Broccoli Blend Seed Mix: Offers staggered harvest timing.

The Gift Seed Tin – Frost Kissed Collection includes Calabrese Broccoli along with several compatible cool season crops, making companion planting easier in spring and fall.

Where to Plant Broccoli in the Garden

Choose a sunny location with well-drained soil. Broccoli grows best in cool weather during spring and fall.

Allow adequate spacing for airflow. Good air circulation reduces disease and helps manage insect pests. Companion planting with herbs and flowers that attract pollinators and beneficial insects improves natural pest control.

When planning what to plant next to broccoli, think about plant height, root depth, and nutrient needs.

Conclusion

Broccoli companion plants play an important role in plant health and yield. The best companion plants for broccoli include aromatic herbs, leafy greens, celery, and bush beans. These crops support pest control and reduce competition.

Avoid planting broccoli next to other brassica plants or heavy feeders that compete for nutrients. Combine companion planting with crop rotation to maintain soil health over time.

With thoughtful planning, companion broccoli strategies can strengthen your vegetable garden and reduce pest pressure naturally.

FAQs About Broccoli Companion Planting

What is the best companion plant for broccoli?

Aromatic herbs such as Dill and Thyme are often considered excellent companion plants for broccoli. Their flowers attract beneficial insects like parasitic wasps and hoverflies, which prey on cabbage worms and other pests. Strong-scented herbs may also help mask broccoli from cabbage moths.

What can I not plant next to broccoli?

It is best to avoid planting other brassica crops such as Cabbage and Cauliflower too closely, especially in the same area year after year. These plants share many of the same pests and diseases, including cabbage worms and clubroot, which can build up in the soil without proper crop rotation.

What pairs well with broccoli plants?

Broccoli grows well alongside leafy greens, onions, garlic, celery, and bush beans. Alliums such as onions and garlic may help deter certain insect pests, while bush beans can improve soil nitrogen levels, which benefits heavy feeders like broccoli.

Can eggplant and broccoli be planted together?

Yes, broccoli can be planted near Eggplant as they are not in the same plant family and do not share major pests or diseases. However, both plants require space, sunlight, and nutrients, so proper spacing and fertile soil are important to prevent competition.

Where should broccoli be planted in the garden?

Broccoli performs best in full sun with rich, well-drained soil and good air circulation. Consistent moisture and soil high in organic matter support healthy head development.

What grows best beside broccoli?

Fast-growing leafy greens and aromatic herbs tend to grow well next to broccoli because they either mature quickly before broccoli reaches full size or help attract beneficial insects that reduce pest pressure.

What companion plants help keep pests away from broccoli?

Herbs such as dill, rosemary, sage, and onions may help reduce pest problems by attracting beneficial insects or masking the scent of brassicas. While they are not guaranteed pest control, they can be part of an integrated pest management approach.

What should you plant after broccoli?

Legumes such as bush beans are an excellent follow-up crop after broccoli. As nitrogen-fixing plants, they help replenish soil nutrients that heavy feeders like broccoli deplete, improving soil health for future plantings.