The Best Onion Companion Plants

Companion planting with your onions can help your plants grow better, taste better, and have less problems with pests.

First off, onions are a member of the allium family. Other alliums include garlic, leeks, shallots, and chives.

Here is a list of plants to grow with your onions to help you grow your best garden ever!


Lettuce and onions make great companions. They do not compete for nutrients in the soil and their roots don’t take up the same soil level.


Chamomile can help improve the flavor and growth of your onions. Other herbs such as summer savory and dill can have the same effect.


Onions can do a lot for your tomato crop including improving the flavor of the fruits. Onions can also help deter pests like aphids in your tomatoes.


Peppers are nightshades like tomatoes and reap the same benefits as tomatoes. Flavor enhancement is more likely to be seen in hot peppers.

Onion Companion Plants for Pest Control

Cabbage Broccoli Carrots Parsley

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