Some vegetables genuinely make each other better neighbors, and some quietly sabotage each other’s growth. Companion planting is the practice of pairing crops that help one another — through pest deterrence, nutrient sharing, or simple use of space — while keeping the bad pairings apart.
It’s one of the oldest tricks in farming and home gardening alike, and you don’t need a science degree to use it well. You mostly just need a reliable companion planting chart to reference when you’re laying out beds each spring.
This guide covers the classic companion planting pairings, the combinations you should actively avoid, and a full reference chart you can come back to season after season.