Explore Cornell - Home Gardening - Vegetable Growing Guides. List of companion plants. Dill is one of the few plants to grow with Fennel This is a list of companion plants.
Many more are in the list of beneficial weeds. Companion plants assist in the growth of others by attracting beneficial insects, repelling pests, or providing nutrients, shade, or support. They can be part of a biological pest control program. Picture-3.