Tradition
No chart mentions this pair.
Pea
Pisum sativum
Fabaceae
Pepper
Capsicum annuum
SolanaceaeCan you plant peas and peppers together?
Yes. Studies found no clear effect of growing peas with peppers, so plant them together or apart as space allows.
Why it makes little difference
About the same harvest. In one field trial, a bed with both crops gave about the same harvest as the same space split into a pea bed and a pepper bed.
What to plant with peas and peppers
Good neighbours of both, best tested first.
Sweet cornWith peas: 40% more harvestWith peppers: 44% more harvest
CilantroWith peas: Recommended by garden charts, not testedWith peppers: Fewer pests
TurnipWith peas: Better soil and nutrient uptakeWith peppers: Fewer pests
What to keep away from peas and peppers
CarrotWith peas: Smaller combined harvest
OnionWith peas: Garden charts advise against it, not tested
ChivesWith peas: 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
No papers found on this pair.
Yield trial
No effect
0.03
0.91
Pepper gains more. Partial LER is each crop's share of the yield it would give alone.
1 field trial. Published LERs lean high.
No effect found
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 peas and peppers
Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.
| Plant | With peas | With peppers |
|---|---|---|
| Sweet corn | Better soil and nutrient uptake40% more harvest from the same spaceField trial, 11 studies. Charts: recommend.Evidence for peas and corn | Lures pests away, better soil and nutrient uptake and less disease44% more harvest from the same spaceField trial, 5 studies. Charts: not listed.Evidence for peppers and corn |
| Cilantro | No trial foundNot tested. Charts: recommend.Evidence for peas and cilantro | Fewer pests and draws in pest-eating insectsField trial, 2 studies. Charts: not listed.Evidence for peppers and cilantro |
| Turnip | Better soil and nutrient uptakeField trial, 1 study. Charts: recommend.Evidence for peas and turnips | Fewer pestsGreenhouse or pot trial, 1 study. Charts: not listed.Evidence for peppers and turnips |
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
- No effectLER 0.99field trialUSA, 1995-1997; Replacement design; median LER 0.99 over 6 treatment(s) · partial LER Pea 0.03, Pepper 0.91
All neighbours of pea and of pepper, or every pair at once in the companion planting chart.
Have you grown peas 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.