How to Plan Companion Planting Around Evidence, Not Folklore
Companion planting works when you pick the mechanism first — host-finding disruption, trap crops, beneficial habitat, legume nitrogen, or shade — instead of copying a chart.
Companion Planting Guides
Compatibility charts and beneficial plant combinations for pest control and growth.
Why Trap Crops Beat Companion Planting for Flea Beetles
Flea beetles ignore repelling companions. Trap crops work because they concentrate the pest where you can remove it, plus the timing and the swap-out.