About Walnuts

More than 99% of the walnuts in U.S. are grown in the fertile soils of California's Central Valley. Internationally, California walnuts supply three-quarters of the world's walnut trade.

Here you can learn more about this truly American success story: the rich history of the 'Royal' nut; the journey from the orchard to your table; and the wealth of health benefits that have been discovered through two decades of health research.

Walnut History & Cultivation


Find out about their origins in ancient Persia, why they became known as 'English Walnuts', and how California became a center for walnut cultivation.