Parsley
Companion plants for parsley
The best companion plants for parsley are carrots, cabbage, tomatoes, corn and asparagus. Lettuce is best kept away. Of the 12 plants we have data on, 5 are good neighbours, 1 is a bad one and 1 is contested. 4 of these verdicts rest on field trials or research papers; the rest come from traditional companion-planting charts.
- 5 good
- 1 to avoid
- 1 contested
- 4 tested in trials or papers
Neighbours of parsley at a glance
Inner rings are backed by trials or papers, outer rings by charts only. Pick a plant to see its sources.
The interactive map needs JavaScript. Every plant on it is listed below with its evidence.
Good companion plants for parsley
Biggest harvest gain first, then the plants tested without a yield count. Each row links to the full evidence for the pair.
| Plant | What trials found with parsley | Tested by | Garden charts |
|---|---|---|---|
 Cabbage |
181% more harvest from the same space | Field trial1 study | Not listed |
 Carrot |
137% more harvest from the same spaceSame family (Apiaceae): shares pests and diseases | Field trial1 study | Not listed |
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).
Recommended by garden charts, not tested yet
We found no trial or paper on these pairs with parsley. They may still work; nobody has measured it.
What not to plant with parsley
| Plant | What trials found with parsley | Tested by | Garden charts |
|---|---|---|---|
 Lettuce |
No trial found | Not tested | Advise against |
Relatives that share pests and diseases
| Plant | What trials found with parsley | Tested by | Garden charts |
|---|---|---|---|
 Celery |
No effect on growthSame family (Apiaceae): shares pests and diseases | Field trial1 study | Not listed |
 Parsnip |
No trial foundSame family (Apiaceae): shares pests and diseases | Not tested | Not listed |
 Dill |
No trial foundSame family (Apiaceae): shares pests and diseases | Not tested | Not listed |
 Fennel |
No trial foundSame family (Apiaceae): shares pests and diseases | Not tested | Not listed |
 Cilantro |
No trial foundSame family (Apiaceae): shares pests and diseases | Not tested | Not listed |
Contested pairings
The sources disagree, or the charts say one thing and the trials another. Open a pair before you plant it.
| Plant | What trials found with parsley | Tested by | Garden charts |
|---|---|---|---|
 Pepper |
Mixed results on harvest | Field trial1 study | Not listed |
Sources
6 sources behind the verdicts on this page. 6 chart entries cite no source and are marked as tradition only.
Show all 6 sources
Same family (Apiaceae): Carrot, Parsnip, Celery, Dill, Fennel, Cilantro.
What grows well with your parsley?
Share what worked next to your parsley and what did not, or ask other growers a question. Reader notes are not checked by us and do not change the verdicts on this page.