Dry wine grapes do best in the counties around San Francisco Bay, on unirrigated lands; while sweet wine stocks do best in Yolo, San Joaquin and the counties of the raisin grape, and on irrigated lands.
It was officially estimated that in the spring of 1904 there were some 227,000 acres of vineyards in the state, of which exactly five-tenths were in wine grapes and four-tenths in raisin grapes.
About 50 major white wine grapes are grown around the world, with 24 grown in California alone.
Emperor and king Charlemagne originally planted white wine grapes on the Corton hillside sometime in the 8th century.
The key to growing wine grapes successfully in Oregon is that they need to be cold tolerant.