Companion Planting with Scallions/Green Onion (& What not to plant with them?)

Do you want to know more about Companion Planting with Scallions/Green Onion? Then stay tuned with us. Companion planting is a great way to get maximum output In small spaces or regular-sized gardens. Have you known that scallions are brilliant companion plants not only in herb or vegetable gardens but can also be grown in fruit gardens? I felt I had an herb Garden.

Key takeaways:

  • Scallions not only cover the gap in the garden but provide to the nearby plants in the garden.
  • Galleons don’t need much space as they grow from tiny bulbs.
  • These green onions will grow straight up without getting spread large and provide ample space for other plants.

Now as I mentioned that they grow from double they don’t have that deep roots so can be grown with plants that have extended roots. In this article, you will get to know what plants you can grow with scallions in the garden and what not you should not grow with them.

What is companion planting? 

If you are still doubtful about companion planting then it is a process in which a plant is grown with one or more types of clans together so that they can mutually or individually provide benefit. You can plant the best-suited vegetables, flowers, and herbs with the main plant.

Benefits of companion planting

  • By companion planting, the growth of the other plant or maybe both are regulated.
  • It is a great way to use space left inside the garden.
  • You have a variety of options in the garden knowing they will not harm each other.
  • The pests and diseases stay away from the plants which otherwise would have caught hold of these plants growing separately.

Why are Scallions great companion plants?

Whenever you are searching for some content regarding companion planting you will come up with carrots and allium-like scallions as well. These green onions are great companion plants that regulate the growth of plants like kale and some brassicas. The quality of the product also improves when scallions are growing nearby to plant. The scallions having a strong smell keep the pests away. They are easily grown near the long roots of plants that need good space and you don’t have to worry about crowding.

For more such plant related-articles, you may also read, What to plant with tomatoes in a container? – Tomato companion planting chart

What to grow with Scallions in companion planting? – Companion Planting with Scallions


The onions keep the carrot fly away which can damage the carrot harvest badly. The carrots benefit from onions and you get some carrot bright-colored carrots in your kitchen.


This herb chamomile invests in the flavor of the onions, you will feel the difference for sure. Chamomile has antifungal and antibacterial properties that hinder the growth of fungus on onions. The chamomile has a beautiful fragrance and you can have some chamomile tea. Why not!? The chamomile with its aroma attracts some beneficial insects that can eat the bugs destroying the onions.


Cabbage or I would say other brassicas like kohlrabi, kale, cauliflower, and broccoli can be grown next to onions. The onion deters the entry of pests, worms, and loopers that love to munch on onions.


Beets when growing near the onions, you will see no thrips coming near the onions. Also, the onion keeps the aphids, and flea beetles, from the beets. The onion also keeps deer and rabbits away from beets that can destroy the harvest.


Lettuce and onion plants growing together dont compete with each other at all because they have contrasting roots. Lettuce has long roots whereas onions have short roots. The onions also repel the pests from lettuce.


Tomatoes largely get attacked by the pest and insects but the onion if growing near them the pests, insects, and some diseases stay at bay. Some examples of other companion plants to grow with tomatoes are Basil, Marigold, Brussels, kale, beans, etc.


The marigold invites and attracts a large number of pollinators and insects into the garden. These insects love to eat bugs and many pests that attack onions. Marigolds are beautiful vibrant flowers that add beauty and benefits to the garden.

Swiss chard

Swiss chard growing near the onions will help the onions in staying moist as they give good shade and cause less evaporation in the soil. They are able to grow in small roots and need moist soil even on the top. The onions on the other hand kept the pests away that can munch on big leaves of Swiss chard. 

Summer savory

The summer savory attracts insects and keeps the pests away from onions. The onions become sweeter in the proximity of summer savory. 


Growing peppers as a companion plant with scallion plants can benefit you a lot. The purpose is to grow spicy fruit that you can add to your food to make the food more delicious. You can know what is good for scallions only by plants that don’t harm them and don’t compete with them to fulfill their nutrients in the soil.

Peppers are plants that grow bushy. They easily allow the sunlight to reach the scallions. Growing them as companion plants does not disturb the roots of the scallions. 


The eggplant is considered a perfect companion plant to be planted with scallions; the eggplants are loved to be eaten by rodents only for taste. When you plant the eggplant onion tomatoes together it creates a fresh ratatouille. You need to provide them fresh garden meals


Planting scallion onion with strawberry does help in keeping the pest away. The sweet strawberry tends to attract the pest and planting them together will keep the insects or furry critters away. 


Planting scallions with parsnips does help in keeping the pests and rodents away. The best do attract the late-growing root vegetables and parsnips are one of them but planting onion as a companion plant will help them to keep them away. Planting the onion with will help in keeping the critters away and get a good harvest


When you plant parsley with onion scallions they do benefit from getting carrots from the plant by providing equal nutrients that help them to grow easily without any competition. 


The roses are the flowers that get infested by the aphids so planting the onion will be an aphid repellent and will help them to grow in the best way.

What not to plant with Scallions/green onions?


The peas and onions sow abnormal stunted types of growth when they are planted near each other. The onions also kill the bacteria that can be beneficial for this leguminous plant. 


It is also better if you grow beans and onions separately or by first taking out the bean plants and then planting the onions. The beans will not be produced in large sizes and show abnormal growth as well when growing next to onions. 


The asparagus and onions in proximity can affect each other’s growth as they compete with each other for nutrients. The abnormal growth is what you will see in both of the plants. Make sure you plant them separately. 


The onions and sage cannot be grown together as they need different growing conditions, which can affect the growth cycle of both. But their many companion plants that grow with sage plants such as carrots, Strawberries, Parsley, etc.

Footnote of the context

We hope you like the article. Do let us know if you find this article helpful. We are happy to help you and hear from you guys. The onions are a great addition to the garden irrespective of little space because they dont not have much space to grow and benefit many plants that are growing near it. Happy growing up! 

Becky Decker

Becky Decker, our esteemed Editor-in-Chief, is a passionate gardener with years of experience in the world of horticulture. With her guidance, aims to be your trusted companion on your gardening journey. Featured In   Becky Decker’s expertise and gardening wisdom have been recognized and featured in various prominent publications, including: Yahoonews  Experience & Background   Becky Decker’s love for gardening has been a lifelong journey. She has honed her skills through countless seasons of planting, nurturing, and harvesting a wide variety of plants, flowers, and vegetables. Her deep-rooted knowledge is complemented by her Bachelor’s degree in Horticulture from the University of Green Valley.   Prior to leading, Becky worked as a garden consultant, helping countless individuals turn their outdoor spaces into vibrant, thriving gardens. Her experience spans over a decade, making her a trusted authority in the gardening community.   The Birth of   Inspired by her passion for gardening and her desire to share her expertise with a wider audience, Becky Decker launched in 2021. This platform serves as a hub for gardening enthusiasts of all levels, from beginners to seasoned pros.   At, we are committed to providing you with comprehensive guides, expert advice, and hands-on tips to help you achieve success in your gardening endeavors. Whether you have a small balcony garden or a sprawling backyard paradise, we have the information you need to make your garden flourish.   Our Mission is more than just a gardening website; it’s a community of gardeners who share a common love for nurturing the Earth. Our mission is to empower you with the knowledge and resources to create beautiful, sustainable gardens that bring joy and tranquility to your life.   Join Us on This Green Journey   We invite you to explore and embark on your gardening journey with us. Whether you’re seeking advice on planting techniques, pest control, landscaping ideas, or the latest gardening trends, you’ll find it all right here.   Connect with us, ask questions, and share your gardening stories. Together, we’ll cultivate a thriving community of gardeners and help each other make the world a greener, more beautiful place.   Let’s dig in and grow together at, where gardening dreams bloom!

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