Capay Valley Almond Festival Late February or March; in Esparto, Capay, Brooks, Guinda, and Rumsey. The only five-town event in Northern California, this festival has been held annually since 1915--that makes it more than 100 years old! Originally scheduled for fall after the harvest, it was eventually moved to the spring, when the almond blossoms are thick throughout the region. Colorful almond blossoms decorate the landscape across the Capay Valley each year, decorating the highways and country roads that wind through the region’s fertile green hills. California is the only place in North America that grows almonds commercially. It is a $2 billion industry, with more than 6,000 Central Valley growers devoting approximately 530,000 acres in the crop.