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Carrot Companion Plants

Give your carrots the best possible environment to grow by implementing companion planting in your vegetable garden. Companion planting is an optimal way to improve the health and fruitfulness of your carrot plants. Planting compatible plants near each other are mutually beneficial for your crops, as they can reap the rewards from each other’s attributes.

Companion planting is an advantageous strategy often implemented by gardeners and farmers who strive to take an organic approach to ward off pests and disease, avoiding the use of harmful chemicals. In addition to adding benefits to your carrot plants, companion planting makes for more efficient use of garden space and acts as a living mulch to protect and feed the soil of your garden bed. The bio-diversity that carrot companion planting provides is also excellent for pollinators, wildlife, and overall soil health.

Healthy young beetroot, onions and carrot plants growing in a home vegetable garden

Best Companion Plants for Carrots

Discerning what works well together and learning about the ways that individual plants can bolster others can significantly improve the productivity in your garden. Here is a robust list of plants that will offer some pest protection for your carrot plants and help you grow the very best carrots. Plant them alongside carrot plants and enjoy the many benefits of companion planting.

Leeks

Leeks release an odor that helps to repel carrot flies. Carrot flies are a nemesis of carrot plants. They lay their eggs on carrot leaves, and the eggs hatch into larvae that feed on carrots.

Flax

Flax plants produce an oil that has been said to protect root vegetables such as carrots from some harmful garden pests.

Onion

These pungent vegetables make great carrot companion plants. Their unappealing odor is a natural deterrent of many garden pests that feed on carrots. Onions can be a useful deterrent of a common carrot seeking pest called the carrot fly.

vegetables growing in the garden

Rosemary

Rosemary is an herb that also has a strong scent. This aromatic plant can mask the smell of carrots in the garden and make it harder for carrot flies to find carrot plants to lay their eggs on.

Sage

Sage is another one of those herbs that emits a strong odor and has also been successful in masking the sweet scent of carrots in the garden, making it more difficult for carrot flies to find carrot plants.

Chives

Chives are an herb that does double the work of most companion plants. Not only can growing chives in close proximity to your carrots improve their flavor, but they also shield carrots from unwanted destructive pests.

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Amaranth

Amaranth can improve the soil content of the garden as it grows. Since carrots are root vegetables, amaranth can improve the growing environment for the downward growth of carrots deep into the soil.

Lettuce and other Salad Greens

Lettuce and other leafy greens can help to loosen the soil, forging a path for its companion plant, carrots. Carrots and lettuce can also thrive in similar cool-weather times of the year, making these garden partners perfect for harvesting salads.

Tomatoes

There is some debate about whether tomato plants help or hurt the carrot plant when planted together in the garden bed. While it is true that tomatoes may release high amounts of nitrogen into the soil and can potentially stunt the growth of carrots, it can also be said that they also can make friendly neighbors. Tomato plants are tall growing plants that can protect lower growing, cool growing carrots from the intense heat of the summer sun.  Tomato plants have also been known to enhance the flavor of carrots. Lastly, they release a natural substance called solanine that may target pests that afflict their carrot neighbors.

Conversely, carrots give back to their neighboring tomato plants by aerating the garden soil around tomato plant roots. This assists the plant in moisture and nutrient absorption, leading to more vigorous plants and more productive yields.

Tomato fruit with water drop and sunlight close up shot

Plants to Avoid in your Carrot Bed

Just as some plants make great companions in the garden, some plants are not the best of friends in the garden.  Luckily for carrots, there are only a few that don’t make the cut when it comes to companion plants.

Dill and Cilantro

Unfortunately, dill and cilantro produce certain compounds that can harm your carrot plants, so it is best to avoid them in the garden.

Parsnips

When it comes to parsnips, they attract similar pests and diseases that carrots do. It is best to separate these crops to protect your carrots from an infestation of these garden pests.


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