The purple Malbec variety grapes which now grow all over the Old and New Worlds had their origins in France, where they are one of the few grape varieties allowed to be used in the highly esteemed blended wines of Bordeaux. However, it is perhaps the New World Malbec wines which have attracted the most attention in recent years, as they thrive in hot southern climates in ways they cannot in their native country, where the damp conditions leave them highly vulnerable to rot. Malbec grapes are renowned for their high tannin content, resulting in full-bodied red wines packed with ripe, plummy flavors and held in their characteristically dark, garnet colored liquid. In many countries, Malbec is still used primarily as a varietal for blending, as it adds a great level of richness and density to other, lighter and thinner varietals. However, single variety Malbec wines have been greatly on the rise in recent years, with some fantastic results and big, juicy flavors marking them out as a great wine for matching with a wide range of foods. Since it began in the 1820s, wine-production in Washington state has gone from strength to strength, with many of the finest United States wines coming out over the past twenty years hailing from this region. Today, the state is the second largest US producer of wines, behind California, with over forty thousand acres under vine. The state itself is split into two distinct wine regions, separated by the Cascade Range, which casts an important rain shadow over much of the area. As such, the vast majority of vines are grown and cultivated in the dry, arid desert-like area in the eastern half of the state, with the western half producing less than one percent of the state's wines where it is considerably wetter. Washington state is famed for producing many of the most accessible wines of the country, with Merlot and Chardonnay varietal grapes leading the way, and much experimentation with other varietals characterizing the state's produce in the twenty-first century.