This guide summarizes the 59 PlantNeighbors pair pages that include Winter Squash. It only marks a pair good or bad when the compiled extension-source facts support that verdict; the rest are treated as ordinary spacing and rotation decisions.
4 documented companions
1 documented incompatibles
54 neutral or undocumented pairs
Documented companions for Winter Squash
Corn, Marigold, Nasturtium, Pole Bean.
Pairs to keep apart
How to use this guide
Start with the sourced pair pages, then adapt the layout to your bed size. Companion planting cannot replace crop rotation, sufficient spacing, water, healthy soil, or scouting for pests.