Sémillon has the power to create wines with considerable structure, depth and length that will improve for several decades. It is the perfect partner to the vivdly aromatic Sauvignon Blanc. Sémillon especially shines in the Bordeaux region of Sauternes, which produces some of the world’s greatest sweet wines. Somm Secret—Sémillon was so common in South Africa in the 1820s, covering 93% of the country’s vineyard area, it was simply referred to as Wyndruif, or “wine grape.”