Ruby Cabernet
Ruby Cabernet was bred in California in the 1930s by crossing Carignan with Cabernet Sauvignon, with the intention of combining the heat resistance of Carignan with the finesse of the Cabernet so that Bordeaux-like wines could also be produced in hotter climates. It became clear, however, that Ruby Cabernet also did well in cooler regions. Though mainly cultivated in California today, it also has a presence in South America, generally as part of a blended wine.