Cardiff resident a pioneer in California grown coffee After working in finance for 15 years, Kyle and his wife moved from San Francisco to San Diego in search of a new venture, and that would be the coffee growing business. and last updated 2021-02-04 12:58:59-05 SAN MARCOS, Calif. (KGTV) â "Coffee is not a flavor, it is a drink with many flavors," says Kyle Rosa, owner of Bluetail Coffee Grove in San Marcos. After working in finance for 15 years, Kyle and his wife moved from San Francisco to San Diego to jump into the coffee-growing business â a move that his family and friends qu...