Tradition
Good
avoidgood
2 chart entries: 2 recommend, 0 advise against.
All entries cite a source.
Pea
Pisum sativum
Fabaceae
Potato
Solanum tuberosum
SolanaceaeCan you plant peas and potatoes together?
It depends. The sources disagree about peas and potatoes. Results on soil and nutrients were mixed in a field trial, while garden charts recommend it.
Why it depends
Mixed results on soil and nutrients. In a field trial, results on soil and nutrients were mixed.
Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems (Gitari HI · 2018 · Field Crops Research.)Garden charts recommend it. 2 garden chart entries recommend growing them together. Charts pass on gardening tradition; they are not tests.
Effect of planting method on production potential of potato + pea intercropping system (Singh · 2012 · Potato Journal)and 1 more source
What to plant with peas and potatoes
Good neighbours of both, best tested first.
GarlicWith peas: 30% more harvestWith potatoes: Recommended by garden charts, not tested
What to keep away from peas and potatoes
CarrotWith peas: Smaller combined harvestWith potatoes: Garden charts advise against it, not tested
OnionWith peas: Garden charts advise against it, not tested
ChivesWith peas: Garden charts advise against it, not tested
CucumberWith potatoes: Garden charts advise against it, not tested
Squash & pumpkinWith potatoes: Garden charts advise against it, not tested- AsparagusWith potatoes: 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.
nutrients / soil
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 peas and potatoes
Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.
| Plant | With peas | With potatoes |
|---|---|---|
| Garlic | 30% more harvest from the same spaceField trial, 2 studies. Charts: recommend.Evidence for peas and garlic | No trial foundNot tested. Charts: recommend.Evidence for potatoes and garlic |
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
- Mixednutrients / soilfield trialauto-classifiedNitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systemsNitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems (Gitari HI · 2018 · Field Crops Research.)Relevance 97% · effect confidence 47%
- GoodPotato helps PeaPotato: helps peasEffect of planting method on production potential of potato + pea intercropping system (Singh · 2012 · Potato Journal)
- GoodPea helps PotatoPotato: helped by peasEffect of intercropping on the population density of pests in some vegetables (Mateeva · 2002 · Acta Horticulturae)Effect of planting method on production potential of potato + pea intercropping system (Singh · 2012 · Potato Journal)
All neighbours of pea and of potato, or every pair at once in the companion planting chart.
Have you grown peas and potatoes 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.