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Cultivating Celeriac Companion Plants for Optimal Growth and Yield

celeriac companion plants

Celeriac Companion Plants: An

If you're looking to grow celeriac, you should consider cultivating companion plants to ensure optimal growth and yield. Companion planting is the practice of growing different crops together for mutual benefits that can include pest control, improved soil fertility, and increased yields. In this article, we'll explore some of the best celeriac companion plants and how they can help your celeriac thrive.

The Benefits of Companion Planting with Celeriac

Companion planting can offer a range of benefits when growing celeriac. Here are a few of the most notable:

Pest Control

Growing celeriac with certain companion plants can help ward off pests that would otherwise damage or destroy your crop. For example, planting celeriac alongside alliums like garlic or onions can repel aphids and other insect pests.

Improved Soil Fertility

Celeriac requires fertile, well-drained soil to thrive. By planting it with certain companion plants, you can improve soil fertility and nutrient availability. Legumes like beans and peas are particularly beneficial as they fix nitrogen in the soil, making it readily available to neighboring plants.

Increased Yields

Companion planting can also lead to increased yields by promoting more vigorous growth and reducing competition between plants. Some companion plants even have a positive effect on the flavor and quality of celeriac.

Best Celeriac Companion Plants

Here are some of the best companion plants to grow alongside celeriac:


Alliums like garlic, onions, and shallots are excellent celeriac companions. They repel pests like aphids and carrot fly and also improve soil fertility.


Legumes like beans and peas are great for fixing nitrogen in the soil, which is beneficial to celeriac and other neighboring plants.


Brassicas like broccoli, cabbage, and kale are good celeriac companions as they also repel pests and have similar growing requirements.


Herbs like thyme, sage, and basil can help deter pests while adding flavor and aroma to your garden.

How to Plant Celeriac Companion Plants

When planting celeriac companion plants, it's important to consider factors like spacing, soil type, and sun exposure. Here are some tips for successfully planting celeriac with its companions:


Be sure to give each plant enough space to grow without competing for resources. As a general rule, celeriac should be spaced 12-18 inches apart, depending on the variety.

Soil Type

Celeriac prefers fertile, well-drained soil with a pH between 6.0 and 7.5. Be sure to choose companion plants that have similar soil requirements.

Sun Exposure

Most companion plants prefer full sun or partial shade, so be sure to plant them in an area that receives adequate sunlight.

Companion Planting Chart

Here's a handy chart to help you plan your celeriac companion planting:

Companion PlantBenefitsNotes
AlliumsRepel pestsPlant bulbs in fall for spring growth
LegumesFix nitrogen in soilPlant before celeriac
BrassicasRepel pestsPlant before or after celeriac
HerbsDeter pests, add flavorPlant in between celeriac rows

Maintaining Celeriac Companion Plants

Caring for your celeriac and its companion plants is an important part of ensuring a successful harvest. Here are some tips for maintaining your celeriac companion plants:


Celeriac and its companions require regular watering to stay healthy and productive. Be sure to water deeply and consistently to keep the soil moist but not waterlogged.


If the soil is not nutrient-rich enough on its own, you may need to fertilize your celeriac and its companion plants. Use a balanced, all-purpose fertilizer or compost tea once a month during the growing season.


Weeds can quickly overtake your garden and compete with your celeriac and its companions for resources. Be sure to weed regularly, either by hand or with a hoe or cultivator.

Celeriac companion planting is a great way to improve the health and productivity of your garden while also reducing pest problems and other issues. By choosing the right companion plants, spacing them properly, and providing consistent care, you can enjoy a bountiful harvest of celeriac and its companions.


Q1: Can I plant celeriac with tomatoes?

A: While tomatoes are not necessarily harmful to celeriac, they have different growing requirements and should not be planted together. Tomatoes prefer more acidic soil and higher temperatures than celeriac, so it's best to give them their own space.

Q2: What is the best time to plant celeriac companion plants?

A: The best time to plant celeriac companion plants depends on the specific plants you choose. Alliums, for example, should be planted in the fall for spring growth, while legumes can be planted before or alongside celeriac.

Q3: Do I need to rotate my celeriac companion plants each year?

A: Yes, it's a good idea to rotate your celeriac and its companions each year to prevent soil-borne diseases and pest problems from building up in the soil.

Q4: Can I plant celeriac with other root vegetables?

A: While celeriac can be grown alongside other root vegetables like carrots and parsnips, they may compete for resources and limit yields. It's best to give each crop its own space.

Q5: Are there any companion plants that should be avoided when growing celeriac?

A: Some plants, like fennel and dill, are known to attract pests that can harm celeriac and other crops. It's best to avoid planting these near celeriac unless you're willing to take extra precautions to prevent pest damage.

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