|Type||American Viticultural Area|
|Year established||1984, amended 2001|
|Part of||Columbia Valley AVA, Oregon, Washington|
|Sub-regions||The Rocks AVA|
|Growing season||190 to 220 days|
|Precipitation (annual average)||12.5 inches (31.8 cm)|
|Soil conditions||Loess soil, unstratified calcareous silt|
|Size of planted vineyards||1,200 acres (486 ha)|
|Grapes produced||Barbera, Cabernet Franc, Cabernet Sauvignon, Carmenere, Chardonnay, Cinsault, Counoise, Dolcetto, Gewurztraminer, Malbec, Merlot, Nebbiolo, Petit Verdot, Pinot noir, Sangiovese, Semillon, Syrah, Viognier|
|Wine produced||Varietal, Dessert wine, Sparkling wine, Meritage|
|Comments||The AVA (located within the black outline in the blue box) extends south into Northern Oregon|
The Walla Walla Valley AVA is an American Viticultural Area located within Washington State and extending partly into the northeastern corner of Oregon. The wine region is entirely included within the larger Columbia Valley AVA. In addition to grapes, the area produces sweet onions, wheat and strawberries. After the Yakima Valley AVA, the Walla Walla AVA has the second highest concentration of vineyards and wineries in Washington State.
The area is named after the Walla Walla river valley.
Geography and climate
The soils of the Walla Walla Valley consist largely of wind-deposited loess, which provides good drainage for vines. The area receives minimal rainfall and thus relies on irrigation. The 200-day-long growing season is characterized by hot days and cool nights. The valley is prone to sudden shifts in temperature as cold air comes down from the Blue Mountains and is trapped in the Snake and Columbia river valleys. While generally cooler than the surrounding Columbia Valley AVA, temperatures in the winter time can drop to −20 °F (−29 °C). Most of the region is in hardiness zone 7a.
The southern part of Walla Walla Valley extends into the state of Oregon and is one of the warmer wine growing regions in that state, after the Rogue Valley. Syrah is a major planting in this area.
The Walla Walla Valley became an early leader in the beginnings of the Washington wine industry when the town of Walla Walla was founded by the Hudson's Bay Company as a trading post in the 1840s. French fur trappers settled in a small town outside the city known as Frenchtown near Lowden and began planting grapes. In the late 1850s, a settler named A.B. Roberts established the first nursery in Walla Walla, importing grape vines from Champoeg, Oregon. In 1859, the city of Walla Walla was incorporated and the Idaho gold rush of 1860 helped make the area a bustling trade center. When the gold rush ended, the economic focus of the state switched to Western Washington and the city of Seattle, lessening the influence of Walla Walla. In 1883, Northern Pacific Railway bypassed the Walla Walla Valley for a route from Spokane to Seattle. This essentially cut off Walla Walla from the growing market of the west. That same year a severe frost devastated the area's grapevines and caused a lot of the earlier grape growers to abandon their crops. The dawning of Prohibition in the United States in the early 20th century finished off the remaining aspect of the area as a wine region.
The rebirth of the Walla Walla wine industry occurred in the 1970s when Leonetti Cellars was founded on 1-acre (4,000 m2) of Cabernet Sauvignon and Riesling. The winery gradually expanded and achieved worldwide recognition as it became one of Washington's most sought-after cult wines. The founding of Woodward Canyon Winery in 1981 and L'Ecole No. 41 in 1983 added to the area's visibility in the wine world and the appellation was granted AVA status in 1984.
As of 2007:
- Cabernet Sauvignon - 41% of planted area
- Merlot - 26% of planted area
- Syrah - 16% of planted area
- Cabernet Franc - 4% of planted area
- Sangiovese - 2% of planted area
- Chardonnay - 2% of planted area
- Viognier - 1% of planted area
- Other red varietals (Barbera, Carmenere, Cinsaut, Counoise, Dolcetto, Grenache, Malbec, Mourvedre, Nebbiolo, Petit Verdot, Pinot noir, Tempranillo) - 7% of planted area
- Other white varietals (Gewurztraminer, Pinot gris, Riesling, Roussane, Sauvignon blanc, Semillon) - 1% of planted area
- Code of Federal Regulations. "§ 9.91 Walla Walla Valley." Title 27: Alcohol, Tobacco and Firearms; Part 9 — American Viticultural Areas; Subpart C — Approved American Viticultural Areas. Retrieved Jan. 30, 2008.
- Appellation America (2007). "Walla Walla Valley (AVA): Appellation Description". Retrieved Jan. 30, 2008.
- T. Parker Discovering Washington Wines pg 43 Raconteurs Press 2002 ISBN 0-9719258-5-2
- T. Parker Discovering Washington Wines pg 91 Raconteurs Press 2002 ISBN 0-9719258-5-2
- R. Irvine & W. Clore The Wine Project pg 58 Sketch Publications 1997 ISBN 0-9650834-9-7
- H. Steiman "Cooler is better for Oregon Pinot" Wine Spectator Dec 31st, 2006
- T. Parker Discovering Washington Wines pg 44 Raconteurs Press 2002 ISBN 0-9719258-5-2
- R. Irvine & W. Clore The Wine Project pg 60-61 Sketch Publications 1997 ISBN 0-9650834-9-7
- R. Irvine & W. Clore The Wine Project pg 63 Sketch Publications 1997 ISBN 0-9650834-9-7
- T. Parker Discovering Washington Wines pg 45 Raconteurs Press 2002 ISBN 0-9719258-5-2