Carrots and cabbage make excellent companion plants due to their complementary growth habits and beneficial effects on each other. Carrots have a deep root system that helps break up compacted soil, making it easier for cabbage to establish its shallow roots. Additionally, carrots release chemicals that repel cabbage pests like aphids and root maggots, protecting the cabbage crop.
Both plants prefer similar cool-season climates and well-drained, loamy soil. While cabbage requires more nitrogen, carrots have low nutrient requirements, making them compatible in terms of soil nutrition. Overall, planting carrots alongside cabbage improves soil structure, deters pests, and enhances both plants' growth.