Tradition
Good
avoidgood
1 chart entry: 1 recommend, 0 advise against.
0 cited, 1 uncited.
Eggplant
Solanum melongena
Solanaceae
Pepper
Capsicum annuum
SolanaceaeCan you plant eggplant and peppers together?
Charts say yes. Nobody has tested eggplant with peppers, as far as we could find. Both are in the Solanaceae family, so they share pests and diseases.
Why we can't give a firm answer
Garden charts recommend it. 1 garden chart entry recommends growing them together. It cites no source. Charts pass on gardening tradition; they are not tests.
List of companion plants (uncited entry) (Wikipedia)Same family, shared pests. Eggplant and peppers are both in the Solanaceae family, so the same pests and diseases can move from one to the other.
Crop Rotation in the Vegetable Garden (Steil · 2025 · Iowa State University Extension and Outreach, Yard and Garden)
What to plant with eggplant and peppers
Good neighbours of both, best tested first.
What to keep away from eggplant and peppers
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
Same family, shared pests and diseases. Both in Solanaceae: often susceptible to the same diseases and insects. Source: Iowa State University Extension and Outreach, Yard and Garden
Research
No papers found on this pair.
Yield trial
No intercropping yield trial.
Untested folklore
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 eggplant and peppers
Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.
| Plant | With eggplant | With peppers |
|---|---|---|
 Radish | No trial foundNot tested. Charts: recommend.Evidence for eggplant and radishes | 69% more harvest from the same spaceField trial, 2 studies. Charts: not listed.Evidence for peppers and radishes |
 Cilantro | Fewer pests67% more harvest from the same spaceField trial, 2 studies. Charts: not listed.Evidence for eggplant and cilantro | Fewer pests and draws in pest-eating insectsField trial, 2 studies. Charts: not listed.Evidence for peppers and cilantro |
 Basil | Draws in pest-eating insectsGreenhouse or pot trial, 1 study. Charts: not listed.Evidence for eggplant and basil | Fewer pests and draws in pest-eating insectsMixed results on harvestField trial, 6 studies. Charts: recommend.Evidence for peppers and basil |
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
- GoodEggplant helps PepperEggplant or Aubergine: helps peppersList of companion plants (uncited entry) (Wikipedia)
- Both in Solanaceae: often susceptible to the same diseases and insectsCrop Rotation in the Vegetable Garden (Steil · 2025 · Iowa State University Extension and Outreach, Yard and Garden)
All neighbours of eggplant and of pepper, or every pair at once in the companion planting chart.
Have you grown eggplant 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.