Semillon is one of the Cape’s true heritage white varietals, with origins as early as the 17th century (when it became known as Groendruif which translates as Green grape), the grape variety accounted for more than 90% of plantings in the first half of the 19th century. While South African Semillon has not quite taken off as a serious commercial category in single varietal form in the modern era, there are stunning wines being made from especially older vineyards (some of them centurions). More often, the variety plays a role in beefing up the volume of Sauvignon blancs.