a national information resource for value-added agriculture
Agricultural Marketing Resource Center

English Walnuts


Two major varieties of walnuts are grown in the United States—the English walnut and the black walnut. The English walnut originated in Persia (now Iran). Commercially produced varieties are nearly all hybrids of the English walnut. The Northern California black walnut is primarily used as the rootstock for English walnut cultivars.

California produces 99 percent of the nation’s commercial English walnuts with almost all production taking place in the Sacramento and San Joaquin valleys.  March 2013 ...  English Walnuts

Other Links

Links checked January 2012.


USDA Rural DevelopmentPartially Funded by USDA Rural Development
...and justice for all.

The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, and marital or family status. (Not all prohibited bases apply to all programs.) Many materials can be made available in alternative formats for ADA clients. To file a complaint of discrimination, write USDA, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250-9410 or call 202-720-5964.

Iowa State University

The names, words, symbols, and graphics representing Iowa State University are trademarks and copyrights of the university, protected by trademark and copyright laws of the U.S. and other countries.