Concannon Vineyard is the second-largest winery in the Livermore Valley of California, producing around 30,000 cases annually. It is well known for its Petite Sirah and Concannon was the first winery to bottle this grape as a varietal wine in 1961. Prior to 1961, the petite sirah grape was produced worldwide as a blend wine. It also produces several other varieties of wine, including Chardonnay and Cabernet Sauvingnon. Concannon is owned by The Wine Group. Concannon was founded in 1883 by an Irish immigrant, James Concannon of Inishmaan, County Galway. James imported a group of cuttings from Chateau Margaux in 1893. James planted a large area of his Livermore vineyard solely with the imported vines. In the 1960s, most of the California vintners were confronted with an attack of phylloxera Closer inspection revealed that the vines descended from the 1893 cuttings looked healthy, while those that were at least partly derived from other grapes appeared to have been preferentially attacked by the virus. More information...
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