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Companion Plants for Carrots: The Best and Worst

best and worst companion plants for carrots

Carrots are a staple crop in many gardens. They are easy to grow, delicious, and packed with nutrients. However, like all plants, they can benefit from the right companions. In this blog post, we will explore the best and worst companion plants for carrots.

The Best Companion Plants for Carrots

1. Onions

Onions are one of the best companion plants for carrots. They repel carrot fly, which is a common pest that can ruin your carrot crop. Onions also help to deter other pests, such as aphids and spider mites. Plant onions around the edges of your carrot bed.

How to plant onions with carrots?

Plant onions alongside your carrots in rows. Make sure to space them out so that each plant has enough room to grow. You can also interplant them by alternating rows of onions and carrots.

2. Garlic

Garlic is another great companion plant for carrots. Like onions, it helps to repel carrot fly and other pests. Garlic also has antifungal properties that can help protect your carrots from soil-borne diseases.

How to plant garlic with carrots?

Plant garlic cloves around the edges of your carrot bed or interplant them with your carrot rows. Make sure to space them out so that each plant has enough room to grow.

3. Chives

Chives are a member of the onion family and have similar benefits to onions and garlic. They repel pests and have antifungal properties. Chives also attract beneficial insects, such as ladybugs and hoverflies.

How to plant chives with carrots?

Plant chives around the edges of your carrot bed or interplant them with your carrot rows. Make sure to space them out so that each plant has enough room to grow.

4. Marigolds

Marigolds are not only beautiful but also great companion plants for carrots. They repel pests, such as nematodes and whiteflies, and attract beneficial insects, such as bees and butterflies. Plant marigolds around the edges of your carrot bed or interplant them with your carrot rows.

How to plant marigolds with carrots?

Plant marigolds around the edges of your carrot bed or interplant them with your carrot rows. Make sure to space them out so that each plant has enough room to grow.

5. Nasturtiums

Nasturtiums are another beautiful and beneficial companion plant for carrots. They repel pests, such as aphids and whiteflies, and attract beneficial insects, such as ladybugs and hoverflies. Nasturtiums also have edible flowers and leaves that make a great addition to salads.

How to plant nasturtiums with carrots?

Plant nasturtiums around the edges of your carrot bed or interplant them with your carrot rows. Make sure to space them out so that each plant has enough room to grow.

The Worst Companion Plants for Carrots

1. Dill

Dill is a popular herb that is often planted with vegetables. However, it is not a good companion plant for carrots. It attracts carrot fly and can cause your carrot crop to be infested with this pest.

Why is dill bad for carrots?

Dill attracts carrot fly, which is a common pest that can ruin your carrot crop.

2. Fennel

Fennel is another herb that is not a good companion plant for carrots. It produces chemicals that can inhibit the growth of other plants, including carrots.

Why is fennel bad for carrots?

Fennel produces chemicals that can stunt the growth of other plants, including carrots.

3. Parsley

Parsley is a popular herb that is often planted with vegetables. However, it is not a good companion plant for carrots. It can attract pests, such as aphids and spider mites, that can damage your carrot crop.

Why is parsley bad for carrots?

Parsley can attract pests, such as aphids and spider mites, that can damage your carrot crop.

4. Celery

Celery is not a good companion plant for carrots. It is in the same family as carrots and can attract the same pests, such as carrot rust flies and carrot weevils.

Why is celery bad for carrots?

Celery is in the same family as carrots and can attract the same pests, such as carrot rust flies and carrot weevils.

5. Tomatoes

Tomatoes are not a good companion plant for carrots. They have a high nitrogen requirement, which can compete with the nitrogen that carrots need. Tomatoes also attract pests, such as whiteflies and hornworms, that can damage your carrot crop.

Why are tomatoes bad for carrots?

Tomatoes have a high nitrogen requirement, which can compete with the nitrogen that carrots need. They also attract pests, such as whiteflies and hornworms, that can damage your carrot crop.


Companion planting is a great way to improve the health and productivity of your garden. By choosing the right companion plants for your carrots, you can reduce pest problems, improve soil health, and increase yields. Remember to avoid planting dill, fennel, parsley, celery, and tomatoes with your carrots, and instead choose onions, garlic, chives, marigolds, and nasturtiums for the best results.

FAQs

1. What is companion planting?

Companion planting is the practice of planting different crops together in the same area in order to improve their health and productivity.

2. Why are onions and garlic good companion plants for carrots?

Onions and garlic repel carrot fly and other pests that can damage your carrot crop.

3. Can I plant dill and parsley with my carrots?

No, dill and parsley can attract pests that can damage your carrot crop.

4. Why should I plant marigolds with my carrots?

Marigolds repel pests, such as nematodes and whiteflies, and attract beneficial insects, such as bees and butterflies.

5. Can I plant tomatoes with my carrots?

No, tomatoes have a high nitrogen requirement and can compete with the nitrogen that carrots need. They also attract pests that can damage your carrot crop.

Great! When it comes to companion planting with carrots, there are a few plants that can help improve their growth and flavor, while others can hinder it. Here are some of the best and worst companion plants for carrots:

Best Companion Plants:

  • Onions: Onions repel carrot flies, which can be harmful to your carrot crop.
  • Garlic: Like onions, garlic also keeps away carrot flies and other pests.
  • Dill: Dill is believed to enhance the flavor of carrots while deterring pests such as spider mites.
  • Chives: Chives are said to improve the overall health of carrots thanks to their antibacterial properties.

Worst Companion Plants:

  • Parsley: Parsley is said to inhibit the growth of carrots, so it's best to keep them separate.
  • Fennel: Fennel attracts aphids, which can damage your carrot crop.
  • Celery: Celery and other members of the carrot family can attract carrot rust flies, so they should not be planted together.

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