Tagetes Plant. They’re grown mainly as a bedding plant at the edge of herbaceous borders but are often grown alongside tomatoes as a companion plant, to ward off white fly. Essential oils in food preservation, flavor and safety, 2016.
Tagetes, or marigolds, is a genus in the sunflower or aster family that includes 49 species of flowering, herbaceous plants with a shrubby form that are native to central and south america and have been introduced throughout the world. Depending on their environment and whether they are grown as an outdoor or indoor plant, marigolds can be annuals or perennials. The plant is used in herbal medicine.