Over 130 years ago, our founder, James Concannon, began importing extraordinary Cabernet Sauvignon vines directly from the renowned Ch?teau Margaux in Bordeaux. Years later, in 1965, his grandson, Jim, collaborated with UC Davis in selecting cuttings from one of those vines for heat treatment. These dynamic, virus-resistant vines later became known as Concannon Cabernet Clones 7, 8 and 11 and played a key role in helping California Cabernet achieve international recognition. Today, we are proud that an estimated 80% of California?s Cabernet Sauvignon is planted with our Concannon Clones.