Château Grimon produces wines from Bordeaux's Côtes de Castillon appellation, a region known for structured reds built on Merlot and Cabernet Sauvignon. The winery's Côtes de Castillon blend—anchored by Merlot with Cabernet Sauvignon support—has earned recognition from Decanter, Wine Spectator, and Wine Advocate. A second offering, the Dubois-Grimon Castillon - Côtes de Bordeaux, broadens the palette with Cabernet Franc alongside Merlot and Cabernet Sauvignon, reflecting the classical Bordeaux approach to blending. Both wines demonstrate the right-bank character of the appellation: ripe fruit, moderate tannin, and the mineral undertone that defines Castillon's terroir.