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Green onion companion plants are more common than you might think.
Because the onion has a strong smell and can literally bring tears to the eyes of anyone handling them, growing them away from the rest of the varieties in a garden seemed to make sense.
But like anything in relationship life, there is a match for everyone out there. And it’s no different for the onion plant.
Growing up watching my parents tend to their massive vegetable gardens, two varieties I saw them plant near onions were tomatoes and cucumbers.
While onions and cucumbers grow at a different soil level, the reason they gave me for growing them close together was to act as a pest repellant.
That made sense right?
With their tomatoes especially, they never seemed to be affected by pests of any description.
And tomatoes were the main staple in our diet. My parents were immigrant Italians who brought their amazing gardening skills with them when they came to this country.
So using green onion companion plants alongside their onion crop was a regular feature of their garden.
Green Onion Companion Plants: What Is Companion Planting?
In this article, I’m basically going to highlight why using green onion companion plants makes good sense. The benefits are numerous. But first, what you need to know about companion planting.
Companion planting is all about growing certain plants in the same space or same vicinity within a garden.
This practice has mutual benefits for different varieties from nutrients to sunlight. It also keeps pest populations down because it discourages pests from eating some of the plants you grow.
Green onion companion plants benefit from the strong aroma of the onion when it comes to repelling unwanted pests.
In addition, companion planting is a great way for beginners to learn the how, why, when and where of gardening.
I was always told all you really need are four basic skills when gardening: knowing what to plant where, understanding the different soil types, choosing the best plants for your climate zone and keeping track of your watering needs.
3 Reasons To Try Companion Planting
Companion planting is one of those gardening techniques that sounds like it belongs in a science fiction movie. But it’s real and works really well.
In fact, companion planting has been around since ancient times. And while it might seem counterintuitive, there are several reasons why you might want to give it a shot.
Here are five benefits of companion planting.
1. Helps Reduces Pest Populations
When we think about pests, most people envision insects — like aphids, mites, and caterpillars. However, many gardeners overlook another major threat to plants: rodents. Rodents aren’t just annoying; they can cause significant damage to gardens. They eat plants, chew up wiring, and destroy plant roots. If you want to keep them out of your garden, companion planting is a great way to do it.
2. Contributes To Improving Soil Health
If you’ve ever had trouble growing certain vegetables because your soil isn’t healthy enough, companion planting could help solve that problem. For example, beans grow best in soils with lots of nitrogen, whereas tomatoes prefer soil with high levels of phosphorous. By combining different types of plants together, you can ensure that each plant gets exactly what it needs.
3. Makes Food Taste Better
The same goes for fruits and veggies. Some produce, such as cucumbers, don’t really need a lot of fertilizer. Instead, they need to be fertilized naturally by being planted near herbs and flowers that attract beneficial pollinators. This helps make your cucumber taste sweeter and fresher.
What Are Good Green Onion Companion Plants?
Onion plants attract many different kinds of beneficial insects that will help you control pests that attack your vegetable crops. They are also attractive to bees that pollinate your flowers.
Good green onion companion plants include beets because onions have the knack of repelling pests that eat beets.
In turn, beets repel pests that eat radishes, carrots, turnips, broccoli, cauliflower, cabbage, lettuce, kale, spinach, peas, beans, and soybeans.
Summer savory, a herb, makes a good companion plant. It can attract beneficial insects like ladybugs, hoverflies, lacewings, parasitic wasps, ground beetles, and spiders. These beneficial insects will help you control aphids, mites, leafhoppers, white flies, thrips, and spider mites.
Tomatoes love onions. It’s like a “match made in Heaven”. Tomatoes don’t usually like most other plants. Planting pockets of onions around them, depending how big your tomato patch is, can pay off big in production.
This combination keeps the soil moist and cool, which helps prevent diseases. Onions repel pests like carrot rust fly, Colorado potato beetle, flea beetle, green peach aphid, squash bug, and tarnished plant bugs.
And once again, you can use summer savory as a pest repellant. You can sprinkle it on the soil near your vegetable gardens.
So the list of green onion companion plants is long. Beets and tomatoes are top of my list. Carrots are high on that list too. Think broccoli, cabbage, peppers, cucumbers and lettuce as well. The companion plants mentioned make up the majority of what we consume as vegetable and fruit lovers.
In other words, they are among the most popular varieties.
Conclusion: Are There Plants You Shouldn’t Plant Near Onions?
Obviously there are.
Asparagus competes with onion for soil nutrients. If you plant it too close to onions, the roots of both plants will compete for water and nutrients. This causes the asparagus to wilt and die off.
You should consider planting the asparagus seeds well away from the onions. Also, avoid planting beans, peas, or other legumes near onions because those crops are prone to disease.
Green onion companion plants doesn’t mean putting different varieties in the same space. Planting them near each other is what you should aim for but not where they are competing for the same attention in the same space.
Planting several onion pockets around a garden patch containing varieties such as those we mentioned above will provide many benefits.
Companion gardening is about growing multiple crops at once. This method of farming allows you to maximize space while still getting great harvests.
In addition, companion plants help each other out by providing nutrients, repelling pests, attracting beneficial insects, and even deterring weeds.