Learn about the best onion companion plants for natural pest control and other perks.
Their strong scent and low growth habit make onions suitablecompanion plantsfor many vegetables, herbs, and flowers.
Onions strong aroma naturally repels cabbage loopers and other pests that target cruciferous vegetables.
Credit: Marty Baldwin
Additionally,onions and cruciferous vegetablesare heavy-feeding plants, so they both benefit fromregular fertilizer applications.
Strawberries
Similarly,strawberries are also prone to pest invasions.
Onions help to repel many of the most common strawberry pests.
Credit: Stephen Cridland
Onions and strawberries are both low-growing plants, so they generally wont compete for sunlight or other necessities.
Lettuce
Lettuce is afast-growing vegetablethat makes a great onion companion plant.
Interplanting it with your onions is a smart way to get the most out of your garden.
Credit:Bob Stefko
While waiting for your onion bulbs to fill out, you may get a garden harvest or two oflettuce.
Even better, lettuce has very short roots so that it wont compete with onion bulbs for soil space.
Additionally, both plantsneed plenty of nutrients, and they have similar growing needs.
Credit:Better Homes and Gardens
Chamomile
Matthew Benson
Chamomileis a delicate herb with small, daisy-like flowers frequently used forherbal teas.
When planted with onions, chamomile is thought to improve the flavor and growth of your onion bulbs.
Chamomile is also very easy to grow from seed and is small-space friendly.
Credit: Kindra Clineff
Summer Savory
Summer savoryis a less commonly used annual herb that tastes a bit like marjoram andthyme.
When grown with onions, it will repel most pests affecting your onions.
Frequently Asked Questions
Onions don’t require a large amount of root space for grow.
Credit: Bob Stefko
You should space most of these vegetable plants about 3-4 inches apart.
However, green onions can be spaced an inch apart.
However, in warmer areas, they can be planted in the fall.
Credit:Erica George Dines
Flea Beetles On Vegetables.
University of Utah Extension.
Credit:Matthew Benson
Credit:Bob Stefko
Credit: Jason Donnelly
