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Companion Planting: The Dos and Don'ts of Growing Carrots

bad companion plants for carrots

Bad Companion Plants for Carrots

When it comes to companion planting, not all plants are created equal. While some plants can enhance the growth and flavor of other plants, others can be detrimental to their growth. Carrots, in particular, have some bad companions that can inhibit their growth or attract pests. In this article, we'll discuss the bad companion plants for carrots and what you should avoid planting alongside them.


Tomatoes are often cited as one of the worst companion plants for carrots. This is because they release a chemical called solanine that can stunt the growth of carrots. Additionally, tomatoes and carrots both attract similar pests, such as aphids and flea beetles, which can lead to an infestation if planted too closely together.


If you must plant tomatoes and carrots together, try to keep them at least 20 feet apart. Alternatively, you can interplant them with herbs like basil or parsley, which can repel pests and improve soil health.


Celery is another plant that can negatively affect the growth of carrots. Both plants require similar nutrients, so planting them together can result in competition for resources. Celery also attracts carrot rust flies, which can damage your carrot crop.


If you want to grow celery and carrots together, try staggering their planting times. Plant the celery first, and then wait a few weeks before planting the carrots. This will give the celery a head while reducing competition for resources.


While dill can be a beneficial companion plant for other plants, it's not ideal for carrots. Dill attracts carrot flies, which can lay eggs on your carrot crop and lead to damage or infestation.


To avoid attracting carrot flies, plant dill away from your carrot crop. Alternatively, you can try planting onions or garlic alongside your carrots, as these plants can repel pests.

Queen Anne's Lace

Queen Anne's lace, also known as wild carrot, is a common weed that can have a negative impact on your carrot crop. This is because it's a close relative of the carrot plant and can cross-pollinate with your crop, leading to stunted growth or an undesirable flavor.


To avoid cross-pollination, remove any Queen Anne's lace from your garden before planting your carrots. Additionally, make sure to harvest your carrots before the Queen Anne's lace goes to seed.

Other Bad Companion Plants for Carrots

In addition to the plants mentioned above, there are a few other plants that should be avoided when planting carrots. These include:

  • Parsnips - Can attract the same pests as carrots and compete for nutrients.
  • Fennel - Attracts pests and can stunt the growth of other plants.
  • Potatoes - Can attract pests and diseases that can harm carrots.


Q1: Can I plant carrots and peas together?

Yes, peas are a great companion plant for carrots. They can help fix nitrogen in the soil and repel pests.

Q2: Is it okay to plant carrots and lettuce together?

Yes, carrots and lettuce can be planted together. Lettuce can act as a living mulch, helping to conserve soil moisture and prevent weeds.

Q3: Can I plant carrots and radishes together?

Yes, radishes are a great companion plant for carrots. They can help break up the soil and improve drainage.

Q4: Should I avoid planting carrots near peppers?

It's best to avoid planting carrots near peppers, as they have different nutrient requirements and can compete for resources.

Q5: Can marigolds be planted with carrots?

Yes, marigolds can be a beneficial companion plant for carrots. They can repel pests and improve soil health.

When it comes to growing carrots, choosing the right companion plants is key to a successful harvest. By avoiding the bad companion plants mentioned in this article and planting your carrots alongside beneficial companions, you can ensure that your crop thrives and produces a bountiful harvest. Happy planting!

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