carrots planted with onions

10 Best Companion Plants For Carrots

Carrots are some of the most popular vegetables around the world, and they have been a staple in many diets for centuries. Growing carrots can be a rewarding experience, but adding companion plants to your carrot patch can make the process even more enjoyable. Companion plants are plants that help improve the growth of carrots, as well as provide additional benefits in terms of pest control, soil improvement, and more. We will discuss some of the best companion plants for carrots and how they can help your carrots thrive.

The best companion plants for carrots

Planting companion plants with carrots is beneficial because they are able to help provide extra nutrients, repel pests, and attract beneficial insects. Having companion plants with carrots also helps to conserve moisture, improve soil structure, and create a more diverse and healthy environment. This can help to reduce the need for chemical pesticides and fertilizers, as the companion plants can help to naturally support the growth of the carrots. Additionally, companion plants can provide shelter and shade for the carrots, helping to protect them from extreme weather.


Onions can help to protect carrots from pests and diseases by repelling harmful insects and providing a physical barrier that prevents the spread of disease. Onions also help to improve the flavor of carrots and increase their overall nutritional value. The strong aroma of onions also helps to mask the scent of carrots, which can help to keep pests away. Furthermore, the deep-rooted nature of onions helps to break apart heavy soils. Allowing for better water and nutrient absorption for carrots. All in all, onions are a great companion plant for carrots, providing a variety of benefits that help to ensure a successful crop.


Rosemary has a strong pungent aroma which is known to repel many common carrot pests such as carrot flies, aphids, and cabbage root flies. Additionally, its tall, upright growth can provide shade for carrots, helping them to retain moisture and preventing them from drying out. Rosemary also helps to improve the flavor of carrots, adding a subtle herbal flavor when cooked. Lastly, rosemary is known to improve the health of carrots by increasing their levels of natural antioxidants. All of these factors make rosemary an ideal companion plant for carrots.


Sage makes an ideal companion plant for carrots as it has been found to deter carrot flies, a common pest that affects carrot crops. This plant is also a great source of nutrients, which can help enrich the soil and provide a good environment for carrots to thrive. Additionally, sage is known to emit a strong aroma when crushed. Which can be used to mask the smell of carrots and make it harder for pests to find them. Furthermore, sage can be used to add flavor to carrots and other vegetables when cooked, adding a unique layer of flavor to any dish. All things considered, sage is a great companion plant for carrots and can help ensure a healthy and productive crop.


Leeks make great companion plants for carrots, as they can provide many benefits to the growth and health of carrots. They have the ability to repel carrot root flies. Which can be a major pest that can damage the roots of carrots. They also help to suppress weeds and can provide shade for the carrots, which can help keep the soil cool and moist. Leeks also provide a strong scent that can confuse pests and prevent them from targeting the carrots. Finally, the two plants can share nutrients from the soil, allowing them to thrive in the same area. With these benefits, it is no wonder that leeks and carrots make such great companion plants.


Cabbage makes an excellent companion plant for carrots. This veggie can provide shade and protection from pests, reducing the risk of infestations on the carrots. Additionally, the two plants require similar growing conditions, including the amount of water, sun, and soil type. Planting them together also helps to conserve space and allows for efficient use of resources. Finally, cabbage produces a natural chemical that discourages carrot flies, providing an additional layer of protection for your carrots. Planting cabbage and carrots together result in a strong, healthy crop with minimal effort.


Lettuce makes an excellent companion plant for carrots, as it can help create a healthier environment for the carrots to grow in. It has a shallow root system and produces a lot of organic matter, which helps to increase the organic content of the soil and improves soil structure. This plant can also help to reduce the number of weeds around carrots, which can deprive them of the necessary nutrients and water. Additionally, lettuce helps to protect the carrots from pests such as carrot rust flies, and it can also protect the carrots from becoming too hot or cold. Finally, lettuce is a great companion for carrots as it can provide a little shade to the carrots and help to keep them cooler during hot spells.


Tomatoes and carrots are a match made in companion planting heaven. They act as a natural form of pest control for carrots, as they attract and trap pests away from the carrots. Additionally, tomatoes provide a natural form of shade for the carrots, helping to protect them from the sun’s harsh rays. They also help to retain moisture in the soil, as their large leaves help to reduce water evaporation. Tomatoes also attract beneficial insects, such as ladybugs and lacewings, which help to keep other pests away from the carrots. Finally, tomatoes provide additional nutrients to the soil, which helps carrots to grow better. With these benefits, tomatoes are a great companion for carrots and can help to ensure a healthy and plentiful harvest.


Radishes are a great companion plant for carrots. This root veggie can help to deter carrot root fly, a common pest of carrot crops, by masking the scent of the carrots. Additionally, because radishes mature quickly, they can help to distract pests from the carrots, which take longer to mature. Radishes also help to aerate the soil, which helps carrots to grow larger and stronger. Finally, radishes provide a tasty snack that can be harvested early on in the growing season, allowing the carrots to continue to develop without competition.


Peas make a great companion plant for carrots in the garden. They act as a natural support for carrot growth, as their vines climb up and around the carrot plants. Additionally, peas also provide shade for carrots from the sun and help retain moisture in the soil. Finally, peas are a great source of nitrogen for the soil, which helps carrots grow full and healthy.


Chives’ strong onion scent helps to repel pests from carrot plants, and the plants also provide beneficial nutrients to the soil. The chives also add a pleasant flavor to any dish featuring carrots. In addition, the chives can be used as a trap crop for pests that might otherwise feed on carrot plants. Chives are easy to grow and can be harvested several times throughout the growing season. Planting chives alongside carrots can help to keep them healthy and pest-free.

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.