The teams at Château Gassier have studied the domaine’s soils in depth in order to determine the best varietals for each terroir, in accordance with strict specifications as set out by the AOP Côtes de Provence Sainte-Victoire. As such, the vineyards have been fully restructured in order to define 4 distinctive terroirs and two primary grape varieties, grenache and syrah, which count for 50% of the domaine’s plantings.