Stephy Terrizzi is a Californian viticulturist and a remarkable figure with her experience and knowledge in the vineyard as well as being highly regarded within her hometown of Paso Robles. She manages the vineyard operations for Giornata, a boutique winery run out of "Tin City". There, they make wine only from native Italian grape varieties. We discussed the history and issues of Italian grape varieties in California, in particular looking at their 2023 Fiano. We talked about organic viticulture and get in depth examples. Finally we discuss irrigation and water use with regards to plant physiology and sustainability. In 2025 Paso Robles Wine Country Alliance named Stephy and her husband Brian as Wine Industry Persons of the Year winners, as recognition for the success of their wines and contribution to their community.