Carrots growin near onions in the garden

What Not to Plant With Carrots?

When it comes to gardening, harmony among your plants can lead to healthier crops and more bountiful harvests. Carrots, with their crisp and sweet nature, are a beloved addition to any garden. But did you know that not all plants make good neighbors for carrots? In this article, we’ll unravel the secrets of companion planting with carrots and explore what you should avoid planting alongside these orange delights. By the end, you’ll have a clear understanding of how to nurture your carrots to their full potential.

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Onions and Garlic – Keep Your Distance

Carrots and onions share the stage in many dishes, but in the garden, they prefer to keep their distance. Why? Well, it’s because onions and garlic release substances that can inhibit carrot growth. These chemicals can interfere with the development of carrot roots, leading to stunted carrots that are far from their full potential. To ensure your carrots thrive, it’s best to plant them away from their allium counterparts. This way, both can flourish without getting in each other’s way.

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Potatoes – Not So Spud-tacular

While both carrots and potatoes are beloved root crops, they don’t make the best gardening buddies. The reason? They compete fiercely for space, water, and nutrients in the soil. Planting them together can lead to overcrowding and disappointing yields for both crops. Carrots need room to develop their long, slender roots, and so do potatoes. To avoid this underground turf war, it’s best to plant your potatoes and carrots separately in your garden beds.

Dill and Fennel – Aromatic Distractions

Dill and fennel are delightful herbs that can add flavor to your culinary creations, but in the garden, they can be aromatic distractions for your carrots. These herbs release strong scents that can attract unwanted visitors like aphids. Aphids can munch on your carrots, causing harm to their delicate foliage. To ensure your carrots remain pest-free and undisturbed, consider planting dill and fennel in a different part of your garden, away from your carrot patch. This way, both your herbs and carrots can thrive without any aromatic interference.

Brassicas – Cabbage, Broccoli, and Cauliflower

Carrots and brassicas, such as cabbage, broccoli, and cauliflower, may seem like a wholesome vegetable family, but in the garden, they can face some compatibility issues. The problem arises because they are susceptible to similar root diseases. When planted together, these diseases can spread easily from one crop to another, jeopardizing your harvest. To ensure both your carrots and brassicas thrive, it’s a good idea to give them separate garden beds, preventing the risk of disease transmission and allowing each to grow without hindrance.

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5. Sunflowers – Too Tall for Comfort: Sunflowers are known for their impressive height and vibrant blooms, which can be a stunning addition to your garden. However, when it comes to planting them alongside carrots, their towering presence can pose a problem. Sunflowers can cast shade over your carrot bed, and carrots love soaking up the sun. This shading effect can hinder carrot growth and result in smaller, less vibrant carrots. To keep both your sunflowers and carrots happy, consider placing sunflowers in an area of your garden where they won’t block the precious sunlight that your carrots need to thrive. This way, your garden can be a harmonious space where all your plants can flourish.


In the intricate world of gardening, understanding the dynamics of companion planting is like conducting a harmonious symphony in your garden. As we’ve explored in this article, knowing what not to plant with carrots is just as crucial as selecting their ideal companions.

Carrots, those crisp and sweet garden gems, deserve the chance to reach their full potential. By avoiding incompatible neighbors like onions, potatoes, dill, fennel, brassicas, and towering sunflowers, you’re creating an environment where your carrots can thrive without unnecessary competition, distractions, or shading.

Remember, a little planning and thoughtful placement can go a long way in ensuring your garden is a space where each plant can flourish, providing you with a bountiful and delicious harvest. So, as you tend to your garden, keep these tips in mind to cultivate a vibrant and productive vegetable patch where your carrots, and all your plants, can truly shine. Happy gardening!

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About the author

Victoria Nelson

Victoria Nelson is a passionate gardener with over a decade of experience in horticulture and sustainable gardening practices. With a degree in Horticulture, she has a deep understanding of plants, garden design, and eco-friendly gardening techniques. Victoria aims to inspire and educate gardeners of all skill levels through her engaging articles, offering practical advice drawn from her own experiences. She believes in creating beautiful, biodiverse gardens that support local wildlife. When not writing or gardening, Victoria enjoys exploring new gardens and connecting with the gardening community. Her enthusiasm for gardening is infectious, making her a cherished source of knowledge and inspiration.

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