Faced with global warming and diminishing water resources, Arnaud Maurières and Éric Ossart have learned to put together low-water gardens. For the first time, these internationally renowned landscape designers present the results of their reflections on natural gardens and their environmental impact, while revealing their gardening secrets. For them, aridity is an opportunity to challenge paradigms. Their verdict? If they are to exist at all, tomorrow's gardens must reduce their water use.