Celery (Apium graveolens)

RootsSeasoningVegetables

Celery is a helpful companion plant, deterring pests like aphids and spider mites. It benefits nearby tomatoes by masking their scent, reducing pest attraction, and works well with leeks and onions, which repel insects.

However, celery should be kept away from carrots, as they compete for similar soil and water. Overall, celery supports a healthy garden with its pest control and space-efficient growth.

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16 Companion Plants for Celery

  • Cabbage Cabbages go very well with celery stalks, as celery's strong smell keeps cabbage white butterflies away from your plants.
  • Spinach Both spinach and celery love nutrient rich soil, so planting them together allows you to fertilize the same amount for each plant.
  • Bush beans Celery can help repel bean beetles from bush beans and pole beans. And beans and peas fix nitrogen to the soil, giving heavy-feeding celery more nutrients.
  • Nasturtium

    Nasturtium helps celery by repelling pests, acting as a trap crop, and suppressing weeds while retaining soil moisture.

  • Onion Onions benefit celery as a companion plant by repelling pests, particularly aphids and carrot flies, which can damage celery. Their strong scent helps mask celery from harmful insects, while both plants thrive without competing for nutrients.
  • Tomatoes Tomatoes benefit celery by providing shade, helping retain soil moisture, and repelling pests like aphids. In return, celery’s strong scent can deter pests that target tomatoes, creating a mutually beneficial pairing.
  • Spinach

    Spinach benefits celery by providing ground cover, reducing weeds, and retaining soil moisture. In return, celery offers partial shade, helping spinach thrive in warmer conditions.

  • Leek Leeks repel pests like carrot flies and celery worms, which makes them a great fit. They must be planted in early spring for a good harvest.
  • Chives Chives benefit celery by repelling pests like aphids with their strong scent. They also enhance soil health and attract pollinators, supporting overall garden growth.
  • Garlic Garlic benefits celery by repelling pests like aphids and cabbage loopers with its strong scent. It also helps improve soil health and deters fungal diseases.
  • Thyme Thyme benefits celery by repelling pests like aphids and whiteflies with its strong aroma. It also attracts beneficial insects and helps suppress weeds, promoting healthier growth.
  • Beans Pole beans benefit celery by fixing nitrogen in the soil, improving soil fertility. Their vertical growth saves space, while celery helps deter pests that may target beans.
  • Cucumbers Cucumber benefits celery by providing ground cover, helping retain soil moisture, and reducing weed growth. In return, celery’s strong scent can help deter pests that might target cucumbers.
  • Sage Another plant with a strong smell, sage repels carrot flies and cabbage moths. Especially during warmer months, tall herb plants like sage can help filter sunlight to protect and cool down celery plants.
  • Dill This garden plant attracts the attention of ladybugs, a major connoisseur of aphids, which will protect young celery plants as they're growing.
  • Cabbage Both celery and cabbage love drinking lots of water, so planting them together means not worrying about overwatering.

5 Neighbor Plants to Avoid near Celery

  • Carrot Both celery and carrots are root crops, and when planted together, they can compete for nutrients, water, and space in the soil.
  • Parsley While parsley and celery are related (both are members of the Apiaceae family), growing them together can lead to poor growth and pest problems.
  • Fennel Fennel can inhibit the growth of other plants, including celery, due to its strong allelopathic properties.
  • Corn Corn is a super heavy-feeder that can zap nutrients that celery needs. And while a little shade is good, too much shade from tall corn could inhibit growth in the celery.
  • Potatoes This one is just a case of poor timing. You’ll be harvesting your potatoes right around the time your celery is in full growth, which means you’ll need to dig up your celery when you dig your potatoes.