Both attract similar pests like the corn earworm and tomato fruitworm, which can easily spread between them.
Dill can stunt carrot growth and produce chemicals that inhibit their development.
Onions release chemicals that inhibit bean growth and can stunt their development.
Cabbage can attract pests and diseases that can harm strawberry plants.
Beans can hinder the growth of pepper plants by competing for nutrients and space.
Garlic can release compounds that inhibit asparagus growth and development.
Sunflowers can inhibit potato growth due to their allelopathic effects.
Aromatic herbs like sage can inhibit cucumber growth and attract pests harmful to cucumbers.