Neem oil and neem cake are great for vegetables because they provide natural pest control and improve soil quality. Neem oil effectively repels common garden pests like aphids, beetles, and caterpillars without harming beneficial insects, making it safe for use on edible plants. Neem cake enriches the soil with nutrients, enhances soil structure, and helps manage soil-borne pests and diseases, promoting healthier and more productive vegetable crops while reducing the need for chemical pesticides.