cauliflower plant

13 Best Cauliflower Companion Plants

When it comes to companion planting, cauliflower is a great crop to start with. Not only is it an incredibly nutritious and versatile vegetable, but it also benefits from being planted alongside certain other plants. From onions and tomatoes to buckwheat and nasturtiums, there are several companion plants that can help your cauliflower to thrive and provide a bounty of fresh produce. With their pest-deterring and nutrient-enhancing qualities, these companion plants can help you to grow a healthy, abundant crop of cauliflower.

The best companion plants for cauliflower

When selecting companion plants to grow near your cauliflower, it’s important to look for plants that grow at approximately the same time of year and provide some benefit to your cauliflower, like fixing soil nutrients or protection from pests. These are some of the best companion plants to grow with cauliflower.



Squash can help to improve the overall yield of the crop. These hardy veggies can provide a physical barrier to certain pests and diseases, while also providing shade to the cauliflower plants. In addition, squash can provide necessary nutrients to the cauliflower plants, helping to improve their overall health and vigor. By planting squash and cauliflower together, gardeners will be able to enjoy a larger harvest of cauliflower, as well as a more robust crop. The two vegetables also complement each other nicely in the garden, making them a great choice for a companion planting strategy.



Beans are an excellent companion plant for cauliflower because they are nitrogen-fixing plants, meaning they can provide much-needed nitrogen to the soil. This is especially helpful for cauliflower, which is a heavy feeder and needs a lot of nitrogen to thrive. Beans also help protect cauliflower from pests, since they produce a lot of foliage and can act as a physical barrier from pests. The extra foliage also helps to shade out any weeds that may try to grow near the cauliflower. Furthermore, beans can provide extra support for the cauliflower, as the stems of the beans can be used to tie the cauliflower’s stems together in order to keep them upright. Beans are a great companion plant for cauliflower and can help it to thrive in any garden.



Corn is another good one to plant near cauliflower as it can help to provide the cauliflower with added nitrogen, while the cauliflower’s deep roots help to reach down and prevent the corn from becoming root-bound. As a result, both crops benefit from the symbiotic relationship. The corn can act as a natural trellis for the cauliflower, allowing it to get more sun exposure and allowing for easier harvesting. Corn can provide cauliflower with shade and protection from pests as well as wind. This is especially helpful for warmer climates where the sun can be too intense for the cauliflower. By planting corn and cauliflower together, gardeners can enjoy a bountiful harvest of two nutritious veggies.



Celery is a great companion plant for cauliflower as it deters certain pests from attacking the cauliflower. It also helps in improving the soil quality and water retention around the cauliflower plant, helping it to grow better. The tall stalks of celery also create a natural shade around the cauliflower, protecting it from the harsh midday sun. The pleasant aroma of celery can also attract beneficial insects like bees and butterflies that help in pollination and pest control. Planting celery near cauliflower is an excellent way to promote healthy growth and can help in producing an abundant harvest.



Onions are a natural deterrent for pests and can help keep pests away from cauliflower, making it less likely that cauliflower will need to be treated with insecticides. Furthermore, onions help to provide extra fertility to the soil, which can help promote the healthy growth of cauliflower. Onions are a great source of nitrogen, which is an important nutrient for cauliflower to thrive.


Onions also help to provide a visually attractive border around cauliflower, making it easier to spot and protect from pests. Finally, onions are known to break up and reduce the soil compaction around cauliflower, which helps to improve the root growth of the cauliflower. Onions are a great companion plant for cauliflower and can help to ensure a bountiful harvest.



These hard veggies can help repel pests that may otherwise be attracted to the cauliflower, while also adding beneficial nutrients to the soil. Radishes also tend to mature more quickly than cauliflower, meaning that you can get a more reliable harvest. They are a great addition to any garden and an excellent companion for cauliflower.



Broccoli and cauliflower are great companion plants, as they both thrive in similar conditions and provide complementary benefits. It acts as a natural pest repellent and can help reduce the risk of pests attacking the cauliflower. Broccoli also provides shade for cauliflower, and its deep roots help to aerate the soil and break up heavy clay soils. These two vegetables also benefit each other nutritionally, as they both contain high amounts of vitamin C and other important minerals. Together, they provide a great nutritional balance and make a great addition to any garden.



Spinach grows quickly and can provide shade for the cauliflower, helping it to stay cool in the summer. They also have a mutually beneficial relationship when it comes to nutrient absorption. Spinach helps to keep the soil around the cauliflower rich in nitrogen, while the cauliflower helps to keep the soil moist and aerated. Spinach also helps to attract beneficial insects, such as ladybugs and lacewings, that can help to protect the cauliflower from pests. With its fast growth rate, multiple benefits, and attractive appearance, spinach is an ideal companion plant for cauliflower.


Chard helps to reduce the development of disease, repel pests, and provide necessary nutrients. Chard is also a good source of nitrogen, which helps to keep the soil well-fertilized and healthy for cauliflower growth. Chard has a high water content, which helps to keep the soil around the cauliflower moist and well-drained.

When planted near cauliflower, chard also helps to attract beneficial insects, such as ladybugs and lacewings, which further protect the cauliflower from pests. For these reasons, chard is an excellent companion plant for cauliflower and is sure to help you get the best yield possible.


Beets are an excellent companion plant for cauliflower, as they can help to protect the cauliflower from pests and disease. They can attract beneficial insects such as hoverflies and ladybugs, which are natural predators of aphids and other pests that can attack cauliflower plants. Beets also act as a natural mulch and help to retain moisture in the soil around the cauliflower plants. This helps to prevent them from drying out and becoming stressed from lack of water. Beets can help to improve soil fertility and provide essential nutrients to cauliflower plants.


Cucumbers are an excellent companion plant for cauliflower, as they provide a number of benefits to this vegetable. They are known to improve the flavor and texture of cauliflower by providing it with additional nutrients that the vegetable may otherwise lack. Cucumbers can act as a natural pesticide, keeping away harmful insects that may otherwise harm cauliflower. Finally, cucumber plants can act as a natural windbreak, providing cauliflower with additional protection from wind damage. Growing cucumbers alongside cauliflower can help both vegetables thrive and produce an abundance of delicious vegetables.


Thyme is a great companion plant for cauliflower. It is known to repel pests and attract beneficial insects, making it the perfect companion for cauliflower. It also improves soil structure, helps to reduce soil-borne diseases, and improves aeration and drainage in the soil. The fragrant leaves of thyme also help to mask the smell of the cauliflower, so it is less attractive to pests. It can help to improve the flavor of the cauliflower. With its many benefits, thyme makes a great companion plant for cauliflower.


Sage is an herb that is often overlooked in the garden but it makes a great companion plant for cauliflower. They help to repel insects that are attracted to cauliflower and help to prevent diseases from attacking the vegetable. Sage adds a wonderful aroma to the garden and has a range of health benefits. When planted near cauliflower, the herb adds flavor to the vegetable, making it more enjoyable to eat. Sage is also drought-tolerant and can thrive in dry conditions, so it’s a great choice as a companion plant for cauliflower.

Cody Medina
Small Scale Farmer
Hi there! I'm Cody, a staff writer here at The Garden Magazine and a small-scale farmer living in Oregon. I've been gardening most of my life and now live on a quarter-acre farmstead with chickens, ducks, and a big garden.