Tradition
No chart mentions this pair.
Lettuce
Lactuca sativa
Asteraceae
Pepper
Capsicum annuum
SolanaceaeCan you plant lettuce and peppers together?
It depends. The sources disagree about lettuce and peppers. Results on harvest were mixed in a field trial.
Why it depends
Mixed results on harvest. In a field trial, results on harvest were mixed.
What to plant with lettuce and peppers
Good neighbours of both, best tested first.
CarrotWith lettuce: 78% more harvestWith peppers: 127% more harvest
OnionWith lettuce: Recommended by garden charts, not testedWith peppers: 20% more harvest
EggplantWith lettuce: 16% more harvestWith peppers: Recommended by garden charts, not tested
CilantroWith lettuce: Recommended by garden charts, not testedWith peppers: Fewer pests
DillWith lettuce: Recommended by garden charts, not testedWith peppers: Draws in pest-eating insects
What to keep away from lettuce and peppers
CeleryWith lettuce: Garden charts advise against it, not tested
ParsleyWith lettuce: Garden charts advise against it, not tested
KaleWith peppers: Garden charts advise against it, not tested
Brussels sproutsWith peppers: 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
Mixed
avoidgood
1 paper found: 0 positive, 0 negative, 1 mixed.
yield / land use
auto-classified not reviewed by a person
Yield trial
No intercropping yield trial.
It's complicated
What happens above and below ground
Each animation illustrates a mechanism a study reported for this pair. Pick a card to focus on it.
Everything at once.
Companion plants for both lettuce and peppers
Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.
| Plant | With lettuce | With peppers |
|---|---|---|
| Carrot | 78% more harvest from the same spaceField trial, 1 study. Charts: recommend.Evidence for lettuce and carrots | 127% more harvest from the same spaceField trial, 1 study. Charts: not listed.Evidence for peppers and carrots |
| Onion | No trial foundNot tested. Charts: recommend.Evidence for lettuce and onions | 20% more harvest from the same spaceField trial, 6 studies. Charts: recommend.Evidence for peppers and onions |
| Eggplant | 16% more harvest from the same spaceField trial, 1 study. Charts: not listed.Evidence for lettuce and eggplant | No trial foundSame family (Solanaceae): shares pests and diseasesNot tested. Charts: recommend.Evidence for peppers and eggplant |
| Cilantro | No trial foundNot tested. Charts: recommend.Evidence for lettuce and cilantro | Fewer pests and draws in pest-eating insectsField trial, 2 studies. Charts: not listed.Evidence for peppers and cilantro |
| Dill | No trial foundNot tested. Charts: recommend.Evidence for lettuce and dill | Draws in pest-eating insectsField trial, 1 study. Charts: not listed.Evidence for peppers and dill |
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
- Mixedyield / land usefield trialauto-classifiedExperimental dataset of the impact assessment of vegetable intercropping on agroeconomic performances, pests and beneficials, and soil resources.Experimental dataset of the impact assessment of vegetable intercropping on agroeconomic performances, pests and beneficials, and soil resources. (Perrin B · 2023 · Data in brief)Relevance 91% · effect confidence 10%
All neighbours of lettuce and of pepper, or every pair at once in the companion planting chart.
Have you grown lettuce and peppers 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.