CORIANDER / CILANTRO (the plant and seeds are CORIANDER, the leaves are CILANTRO). This is a trendy spice used in salsas, dips and salad dressings. The plant repels aphids, spider mites and potato beetles. COMPANION PLANTS include caraway, potatoes, anise and dill. The plant doesn't like hot weather, so try growing it with dil, whose tall stalks can help prolong it in the worst heat of summer.