About Squash
Squash is a warm-season vine that needs pollinators, warm soil, and room to sprawl. Pest-trap flowers and radish markers work well at bed edges.
Subtropical melons need the longest frost-free window — see Heat Lover guild overlap.
Good companions
Plants that pair well with Squash — tap for their guides. Cited sources appear where research is linked in the matrix.
Squash vines shade soil and suppress weeds between corn and bean rows in the Three Sisters guild.
Bean (Bush) PolycultureIn Three Sisters polyculture, squash shades soil while beans climb corn and fix nitrogen for all three.
NasturtiumListed as beneficial in the matrix — open the grid for full context.
MarigoldListed as beneficial in the matrix — open the grid for full context.
PeaListed as beneficial in the matrix — open the grid for full context.
Radish Spatial pairingFast radishes mark squash rows and break soil crust before slow cucurbit germination.
SunflowerListed as beneficial in the matrix — open the grid for full context.
Oregano Beneficial insectsOregano attracts pollinators to squash flowers and may confuse pests with aromatic foliage at bed edges.
BuckwheatListed as beneficial in the matrix — open the grid for full context.
CatmintListed as beneficial in the matrix — open the grid for full context.
Coneflower (Echinacea)Listed as beneficial in the matrix — open the grid for full context.
LupineListed as beneficial in the matrix — open the grid for full context.
PetuniaListed as beneficial in the matrix — open the grid for full context.
PhaceliaListed as beneficial in the matrix — open the grid for full context.
+ 3 more in the matrix
Avoid planting together
Known poor neighbours — spacing apart or rotating beds reduces shared pest and disease pressure.
Growing tips
- Hand-pollinate if fruit sets poorly — pollinator strips within 10 m help.
- Powdery mildew: improve airflow; water at soil level, not on leaves.
- Fast radishes can mark rows before slow cucurbit germination.
Use the compatibility matrix
Filter to Squash to see green (beneficial), red (incompatible), and grey (neutral) for every pair among 162 plants. Desktop: hover cells. Mobile: tap for details.