Squash & pumpkin
Companion plants for squash
The best companion plants for squash are beans, corn, tomatoes, okra and lettuce. Potatoes are best kept away. Of the 11 plants we have data on, 7 are good neighbours, 1 is a bad one and 0 are contested. 5 of these verdicts rest on field trials or research papers; the rest come from traditional companion-planting charts.
- 7 good
- 1 to avoid
- 0 contested
- 5 tested in trials or papers
Neighbours of squash 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 squash
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 squash | Tested by | Garden charts |
|---|---|---|---|
 Tomato |
18% more harvest from the same space | Field trial1 study | Recommend |
 Bean |
Fewer pests and better soil and nutrient uptake17% more harvest from the same space | Field trial7 studies | Recommend |
 Sweet corn |
13% more harvest from the same space | Field trial4 studies | Recommend |
 Lettuce |
10% more harvest from the same space | Field trial1 study | Not listed |
 Okra |
About the same harvest as separate beds | Field trial1 study | Recommend |
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 squash. They may still work; nobody has measured it.
What not to plant with squash
| Plant | What trials found with squash | Tested by | Garden charts |
|---|---|---|---|
 Potato |
No trial found | Not tested | Advise against |
Relatives that share pests and diseases
| Plant | What trials found with squash | Tested by | Garden charts |
|---|---|---|---|
 Cucumber |
No trial foundSame family (Cucurbitaceae): shares pests and diseases | Not tested | Not listed |
 Melon |
No trial foundSame family (Cucurbitaceae): shares pests and diseases | Not tested | Not listed |
 Watermelon |
No trial foundSame family (Cucurbitaceae): shares pests and diseases | Not tested | Not listed |
Sources
13 sources behind the verdicts on this page. 11 chart entries cite no source and are marked as tradition only.
Show all 13 sources
Same family (Cucurbitaceae): Cucumber, Melon, Watermelon.
What grows well with your squash?
Share what worked next to your squash 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.