Best Onion Companion Plants To Boost Your Harvest

July 02, 2023 Post a Comment

Onions are a staple in many gardens, and for good reason. They're delicious, versatile, and relatively easy to grow. But did you know that you can boost your onion harvest by planting them with the right companion plants?

Companion planting is a gardening technique that involves planting different types of plants together in order to benefit each other. Some plants attract beneficial insects, while others help to repel pests. Some plants even improve the flavor or nutritional value of their neighbors.

When it comes to onions, there are a number of companion plants that can help you get a better harvest. Here are a few of the best:

Carrots: Carrots and onions are a classic companion plant combination. The strong scent of onions helps to repel the carrot fly, a common pest of carrots. Carrots, in turn, help to improve the flavor of onions.
Leeks: Leeks and onions are both members of the allium family, and they benefit from being planted together. They have similar growing requirements and can help to deter pests like aphids and onion maggots.
Beets: Beets and onions are another great companion plant combination. The roots of beets help to loosen the soil, which benefits the roots of onions. Onions, in turn, help to repel the beet leafhopper, a common pest of beets.
Lettuce: Lettuce and onions are both cool-season vegetables, so they can be planted together in the same bed. The strong scent of onions helps to repel aphids and other pests that can damage lettuce leaves.
Strawberries: Strawberries and onions are a surprising but effective companion plant combination. The strong scent of onions helps to repel the strawberry root weevil, a common pest of strawberries. Strawberries, in turn, help to improve the flavor of onions.

In addition to these five plants, there are a number of other companion plants that can benefit onions. Some other good options include:

Basil: Basil helps to repel mosquitoes and other insects, which can help to protect your onions from pests.
Chamomile: Chamomile helps to improve the flavor of onions and can also help to repel pests.
Dill: Dill helps to attract beneficial insects, such as ladybugs and hoverflies, which can help to control pests.
Marigolds: Marigolds help to repel nematodes, which can damage onion roots.
Peas: Peas help to fix nitrogen in the soil, which can benefit onions.

When choosing companion plants for onions, it's important to consider the growing conditions and the needs of both plants. For example, if you're planting onions in full sun, you'll want to choose companion plants that also prefer full sun. And if you're planting onions in poor soil, you'll want to choose companion plants that can tolerate poor soil conditions.

By planting onions with the right companion plants, you can boost your harvest and improve the health of your plants. So next time you're planning your garden, be sure to consider these beneficial companions for your onions.

Onion companion planting is a great way to improve the health and productivity of your onion crop. By planting onions near certain other plants, you can help to repel pests, attract beneficial insects, and improve the overall soil health.

Some of the best onion companion plants include:

Brassicas: Broccoli, cabbage, cauliflower, kale, and other members of the brassica family benefit from being planted near onions. Onions can help to repel pests that target brassicas, such as cabbage worms and cabbage loopers.
Carrots: Onions can help to repel the carrot fly, a common pest of carrots. By planting onions around your carrot crop, you can help to protect your carrots from this destructive pest.
Herbs: Chamomile, dill, mint, and parsley are all good companion plants for onions. These herbs can help to attract beneficial insects, such as ladybugs and lacewings, which can help to control pests.
Tomatoes: Onions and tomatoes are both members of the nightshade family, and they can benefit from being planted near each other. Onions can help to repel pests that target tomatoes, such as aphids and hornworms.

For more information about onion companion planting, visit Home Gardening.

FAQ of onion companion plants

What are some good companion plants for onions?

Onions are a great companion plant for many other vegetables, herbs, and flowers. Some of the best companion plants for onions include:

Brassicas: Onions can help to repel pests that target brassicas, such as cabbage moths and cabbage loopers. Some good brassica companions for onions include broccoli, Brussels sprouts, cabbage, cauliflower, collard greens, kale, kohlrabi, mustard greens, and turnips.
Carrots: Onions can help to deter carrot flies, which are a common pest of carrots.
Chamomile: Chamomile can help to repel pests and diseases from onions, and it can also improve the flavor of the onions.
Herbs: Many herbs, such as dill, mint, and parsley, can make good companion plants for onions. These herbs can help to repel pests and attract beneficial insects to the garden.
Lettuce: Onions can help to improve the flavor of lettuce, and they can also help to deter pests such as aphids and slugs.
Peas: Peas can help to fix nitrogen in the soil, which can benefit onions.
Potatoes: Onions can help to deter potato beetles from potatoes.
Summer savory: Summer savory can help to repel pests from onions, and it can also improve the flavor of the onions.
Strawberries: Onions can help to deter slugs and snails from strawberries.

What are some plants that should not be planted near onions?

There are a few plants that should not be planted near onions, including:

Asparagus: Onions can stunt the growth of asparagus.
Beans: Onions can interfere with the nitrogen fixation process of beans.
Peas: Onions can stunt the growth of peas.
Sage: Onions can negatively affect the flavor of sage.

What are the benefits of planting companion plants with onions?

There are many benefits to planting companion plants with onions. Some of the benefits include:

Disease and pest control: Companion plants can help to deter pests and diseases from onions. For example, chamomile can help to repel pests, and brassicas can help to deter pests that target cabbage crops.
Nutrient cycling: Some companion plants, such as peas, can help to fix nitrogen in the soil, which can benefit onions.
Pollination: Some companion plants, such as flowers, can attract pollinators to the garden, which can help to improve the pollination of onions.
Flavor enhancement: Some companion plants, such as carrots, can help to enhance the flavor of onions.

Image of onion companion plants

10 different images of onion companion plants that are free to use:

Garlic. Garlic is a natural insect repellent and can help to deter pests from onion plants.
Carrots. Carrots and onions can help to improve each other's flavors.
Cucumbers. Cucumbers can help to repel aphids and other pests from onion plants.
Herbs. Many herbs, such as basil, mint, and thyme, can help to deter pests from onion plants.
Lettuce. Lettuce can help to attract beneficial insects to the garden, which can help to control pests.
Marigolds. Marigolds are another natural insect repellent and can help to deter pests from onion plants.
Peas. Peas can help to improve the nitrogen levels in the soil, which can benefit onion plants.
Potatoes. Potatoes and onions can help to repel each other's pests.
Spinach. Spinach can help to improve the drainage in the soil, which can benefit onion plants.
Tomatoes. Tomatoes can help to repel nematodes, which are pests that can damage onion plants.