Established in 1980 by Paul and Jill Buttery, Gemtree is a biodynamic, family-owned winery in McLaren Vale, South Australi… a. The Butterys released their first vintage in 1998 with son Andrew as Managing Director and daughter Melissa and her husband Mike Brown in charge of the viticulture and winemaking. When Melissa had the realization that she was growing her own vegetables organically and not giving her vines same care, the family decided to convert all the vineyards to organic viticulture and