Tradition
Good
avoidgood
4 chart entries: 4 recommend, 0 advise against.
1 cited, 3 uncited.
Carrot
Daucus carota subsp. sativus
Apiaceae
Leek
Allium ampeloprasum var. porrum
AmaryllidaceaeCan you plant carrots and leeks together?
Charts say yes. Nobody has tested carrots with leeks, as far as we could find.
Why we can't give a firm answer
Garden charts recommend it. 4 garden chart entries recommend growing them together. 3 of them cite no source. Charts pass on gardening tradition; they are not tests.
Effect of intercropping on the population density of pests in some vegetables (Mateeva · 2002 · Acta Horticulturae)
What to plant with carrots and leeks
Good neighbours of both, best tested first.
CabbageWith carrots: 19% more harvestWith leeks: 16% more harvest
What to keep away from carrots and leeks
PeaWith carrots: Smaller combined harvest
ParsnipWith carrots: Garden charts advise against it, not tested
DillWith carrots: Garden charts advise against it, not tested
PotatoWith carrots: Garden charts advise against it, not tested
RadishWith carrots: Garden charts advise against it, not tested
Swiss chardWith leeks: Garden charts advise against it, not tested
The evidence in detail
For readers who want to dig in: every chart entry, study and yield trial behind the answer above, with the numbers.
Tradition, research and yield trials
Research
No papers found on this pair.
Yield trial
No intercropping yield trial.
Untested folklore
Companion plants for both carrots and leeks
Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.
| Plant | With carrots | With leeks |
|---|---|---|
| Cabbage | 19% more harvest from the same spaceField trial, 1 study. Charts: not listed.Evidence for carrots and cabbage | 16% more harvest from the same spaceField trial, 1 study. Charts: not listed.Evidence for leeks and cabbage |
Harvest from the same space compares a bed with both crops against the same area split into single-crop beds, counting the harvest of both crops (the land equivalent ratio in yield trials).
The evidence, with sources
- GoodCarrot helps LeekCarrots: helps leeksList of companion plants (uncited entry) (Wikipedia)
- GoodLeek helps CarrotCarrots: helped by alliums (chives, leeks, onions, shallots, etc.)Effect of intercropping on the population density of pests in some vegetables (Mateeva · 2002 · Acta Horticulturae)
- GoodLeek helps CarrotLeek: helps CarrotsList of companion plants (uncited entry) (Wikipedia)
- GoodCarrot helps LeekLeek: helped by CarrotsList of companion plants (uncited entry) (Wikipedia)
All neighbours of carrot and of leek, or every pair at once in the companion planting chart.
Have you grown carrots and leeks together?
Tell other gardeners what happened: spacing, pests, harvest, or ask a question. Reader notes are not checked by us and do not change the verdicts on this page.