What Are the Best Companion Plants for Garlic?
Garlic grows best with tomatoes, strawberries, cabbage and beets. 4 plants in our chart pair well with garlic, mostly by deterring or trapping pests and traditional flavor claims; none of those pairings are research-supported.
| Plant | Why | Evidence |
|---|---|---|
| TomatoesPest control | Garlic's sulfur compounds are said to repel aphids and spider mites from tomatoes; field evidence is thin, but garlic harvested in early summer frees up space as tomatoes grow. | Traditional |
| StrawberriesPest control | Garlic is traditionally interplanted with strawberries to deter aphids and spider mites; both overwinter in the bed. | Traditional |
| CabbagePest control | Garlic is said to deter cabbage worms and aphids; field effects are weak, but garlic occupies the bed early in the year. | Traditional |
| BeetsFlavor & folklore | Garlic is said to improve beet growth and flavor; the claim is untested, but the two share a bed easily. | Traditional |
Good companion plants for garlic, strongest evidence first.
What Should You Not Plant With Garlic?
Don't plant garlic near beans, peas and asparagus. The conflicts come mainly from a traditional claim of stunted growth and competition for space, light or water; none of the 3 are research-supported and the rest are practical or traditional rules.
| Plant | Why | Evidence |
|---|---|---|
| BeansClaimed growth inhibition | A widely repeated rule says garlic stunt beans; it has had little controlled testing, but separating them costs nothing. | Traditional |
| PeasClaimed growth inhibition | A widely repeated rule says garlic stunt peas; it has had little controlled testing, but separating them costs nothing. | Traditional |
| AsparagusCompetition | Garlic is traditionally kept out of asparagus beds; lifting the bulbs disturbs the asparagus crowns. | Traditional |
Plants to keep away from garlic.
Which Garlic Companion Claims Are Backed by Research?
None of the 7 garlic pairings in our data has direct research support: none rest on practical horticulture and 7 are traditional claims passed down in gardening books.
Research-supported pairings rest on documented biology: shared pathogens, pollination, nematode suppression or insects that feed on specific flowers. Practical pairings are plain logic about space, shade and timing. Traditional companions such as tomatoes, strawberries, cabbage and beets are harmless to grow with garlic, but don't rely on them for pest control — row covers, crop rotation and regular checks do more.
How Should You Plant Garlic With Companions?
Plant garlic cloves about 6 inches (15 cm) apart in fall; in spring, sow lettuce between the rows and set strawberry plants along the edges. Keep beans and peas in a different bed.
Companions still need room of their own, so work out how many garlic and partner plants fit in a bed with the plant spacing calculator. Planting dates for garlic and its companions follow your local spring and fall frost dates, so cool-season partners can be sown together in early spring or late summer for a fall crop.
Watering, feeding, light and harvest timing for garlic are covered in the garlic plant care guide.
Which Crops Share Companions With Garlic?
Onions, strawberries and tomatoes share companion plants or growing conditions with garlic, so their companion guides help plan the same bed or rotation.
- The guide to companion plants for onions overlaps with this one: both crops grow well with strawberries, cabbage and beets; as members of the same plant family, the two should rotate together.
- The guide to companion plants for strawberries covers a crop grown in similar conditions, and strawberries are a good companion for garlic too.
- The guide to companion plants for tomatoes covers a crop grown in similar conditions, and tomatoes are a good companion for garlic too.
To check garlic against every other plant at once, or test a whole bed plan, use the companion planting chart and garden checker.
Frequently Asked Questions
- What is the best companion plant for garlic?
- Tomatoes are one of the best-supported companions for garlic. Garlic's sulfur compounds are said to repel aphids and spider mites from tomatoes; field evidence is thin, but garlic harvested in early summer frees up space as tomatoes grow.
- What should you not plant with garlic?
- Avoid planting garlic near beans, peas and asparagus. The most important conflict is with beans: A widely repeated rule says garlic stunt beans; it has had little controlled testing, but separating them costs nothing.
- Can you plant garlic and onions together?
- Yes, garlic and onions can share a bed; neither is known to help or harm the other. Both belong to the onion family (Amaryllidaceae), so they share pests and diseases — rotate them together and don't follow one with the other.
- Does companion planting really work for garlic?
- Partly. None of the 7 garlic pairings in our data are backed by research, none are practical space or timing rules, and 7 are traditional. Flowers that feed beneficial insects and separating crops that share diseases have the strongest evidence.
Companion data: PlantoScan's own editorial compilation, written from general horticultural knowledge, plant pathology and published intercropping research. Evidence labels are our editorial judgment; results vary with climate, soil, variety and pest pressure.