La Gacilly is best known as the location of worldwide cosmetics company Yves Rocher. It was established in 1959 by a local, Yves Rocher, who also served as the mayor of La Gacilly from 1962 to 2008, when his son Jacques Rocher was elected to the office.[5]
The "Festival Photo de La Gacilly" is an annual event usually taking place since 2004 between the months of June and October, during which some streets and the Botanical Garden are decorated with photographies from professionals from all over the world. The theme for the 2022 one is "Oriental Visions".[6]