What Are the Best Companion Plants for Celery?
Celery grows best with kale, cabbage, broccoli, cauliflower and leeks. 5 plants in our chart pair well with celery, mostly by deterring or trapping pests and using space and time efficiently; none of those pairings are research-supported.
| Plant | Why | Evidence |
|---|---|---|
| KalePest control | Celery's scent is a traditional deterrent for cabbage white butterflies on kale; both need rich, moist soil. | Traditional |
| CabbagePest control | Celery's scent is a traditional deterrent for cabbage white butterflies on cabbage; both need rich, moist soil. | Traditional |
| BroccoliPest control | Celery's scent is a traditional deterrent for cabbage white butterflies on broccoli; both need rich, moist soil. | Traditional |
| CauliflowerPest control | Celery's scent is a traditional deterrent for cabbage white butterflies on cauliflower; both need rich, moist soil. | Traditional |
| LeeksSpace & timing | Leeks and celery are traditionally grown side by side, since both want deep, moist, rich soil. | Traditional |
Good companion plants for celery, strongest evidence first.
What Should You Not Plant With Celery?
Don't plant celery near carrots. The conflicts come mainly from shared pests and diseases; 1 of the 1 is research-supported.
| Plant | Why | Evidence |
|---|---|---|
| CarrotsShared pests & disease | Carrots and celery share the carrot rust fly; planting them side by side gives the fly an easy path between crops. | Research-supported |
Plants to keep away from celery.
Which Celery Companion Claims Are Backed by Research?
1 of the 6 celery pairings in our data is research-supported: carrots. Of the rest, none rest on practical horticulture and 5 are traditional claims.
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 kale, cabbage, broccoli and cauliflower are harmless to grow with celery, but don't rely on them for pest control — row covers, crop rotation and regular checks do more.
How Should You Plant Celery With Companions?
Plant celery 8 to 10 inches (20–25 cm) apart in rows alternating with leeks, or among cabbage and broccoli. Keep carrots in a different bed or under netting.
Companions still need room of their own, so work out how many celery and partner plants fit in a bed with the plant spacing calculator. Planting dates for celery 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.
Which Crops Share Companions With Celery?
Leeks, carrots and cabbage share companion plants or growing conditions with celery, so their companion guides help plan the same bed or rotation.
- The guide to companion plants for leeks overlaps with this one: both crops grow well with cabbage, and leeks are a good companion for celery too.
- The guide to companion plants for carrots overlaps with this one: both crops grow well with leeks, but carrots and celery should grow in separate beds.
- The guide to companion plants for cabbage overlaps with this one: both crops grow well with leeks, and cabbage is a good companion for celery too.
To check celery 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 celery?
- Kale is one of the best-supported companions for celery. Celery's scent is a traditional deterrent for cabbage white butterflies on kale; both need rich, moist soil.
- What should you not plant with celery?
- Avoid planting celery near carrots. The most important conflict is with carrots: Carrots and celery share the carrot rust fly; planting them side by side gives the fly an easy path between crops.
- Can you plant celery and leeks together?
- Yes, celery and leeks are good companions. Leeks and celery are traditionally grown side by side, since both want deep, moist, rich soil.
- Does companion planting really work for celery?
- Partly. 1 of the 6 celery pairings in our data is backed by research, none are practical space or timing rules, and 5 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.