Zialena Winery

Welcome to Zialena Winery - a fourth generation winery in the heart of Alexander Valley.

For over a century, the Mazzoni family has been growing premium grapes and making wine in Sonoma County. Now you can visit our stunning estate that opened in 2017. Comprised of a world class winemaking facility featuring open-top concrete fermenters and a hospitality center designed to soak in the surrounding views, let our hospitality team guide you through a selection of our wines where you can share in our rich history.

Zialena Winery has roots in Geyserville dating back to the early 1900’s when Giuseppe Mazzoni immigrated from Carrara, Italy. Joining the Italian Swiss Colony, he became a grape farmer and winemaker. His sons, Fred and Jim, carried on the tradition and produced wine in the “Dr. Pierces” barn on Highway 101 for many years until the winemaking operation closed in the 1970's. Jim’s youngest son, Mike, expanded the grape growing business which he continues to operate today under Mazzoni Vineyards.