Companion planting chart
Choose a crop to see its good neighbours and the ones best kept apart.
A printable PDF: a 34-crop at-a-glance matrix, three starter 4 x 4 ft beds, an A-Z table for all 92 crops and two blank beds to plan on. Print on US Letter or A4.
Companion planting evidence is mixed. The reliable wins: rotate plant families, avoid crowding heavy feeders together, and use flowers and herbs to pull in pollinators and predatory insects. See the companion planting guide for what holds up.
How this is calculated
Pairings come from Cooperative Extension companion-planting references and combine both directions — crops this one grows well with, and crops that list it as a companion. Where a pairing appears on both the “good” and “avoid” sides, it is shown as avoid. The strongest, best-supported rules are family rotation and not crowding heavy feeders; many specific pairings are traditional rather than proven.
Common questions
Is companion planting scientifically proven?
Only partly. A few pairings have real research behind them - tall crops shading lettuce, or strong-smelling herbs confusing some pests by scent. Many traditional pairings are passed-down gardening folklore without controlled studies behind them.
What should I trust the most in this chart?
Family-level rotation and not crowding heavy feeders together are the best-supported ideas here. Treat specific pairings as reasonable defaults, not hard rules.
A crop shows up as both good and avoid for the same pairing - what happened?
When sources disagree, this tool defaults to showing it as avoid so you err on the side of caution - see "How this is calculated" above for why.