The Domaine uses organic farming methods and works sustainably. They have abandoned plastic packaging materials, use solar energy, make their own compost, and use recyclable cardboard and water based inks. Diane de Puymorin set out to slowly elevate the image of Costières de Nimes, the southernmost appellation in the Rhône Valley. She has since become a passionate advocate for terroir distinction within the appellation, and has recently proposed changes to the INAO to gain recognition for the soils around St. Gilles on her labels. With the help of her husband, Mathieu Chatain and their five daughters, she creates charming, spicy reds, as well as vibrant rosés and whites.