- Grape growing began in the Walla Walla Valley in the 1850s by Italian immigrants.
- Over 100 wineries and more than 1,600 acres (648 hectares) of vineyards.
- Cabernet Sauvignon is the leading varietal while Merlot, Chardonnay and Syrah are other predominant varieties. Gewurztraminer, Cabernet Franc, Sangiovese, Grenache, Malbec, Petit Verdot, Tempranillo, Pinot Gris, Riesling, Sauvignon Blanc, Semillion, and Viognier are also grown.
- Loess derived soils which are essentially unconsolidated, unstratified calcareous silt.
- Growing season of 190 to 220 days, with annual rainfall averaging 12.5 inches (32 cm) per year.
WASHINGTON WINE 101: