The winery "Friedrich Bastian - Erbhof Zum Grünen Baum" is located in the municipality of Bacharach in the German wine-growing region of the Middle Rhine
. The origin of this traditional winery dates back to 1697. Since 1993, it has been run by Friedrich Bastian, who had already been responsible for the wine since 1989. The estate bar "Zum Grünen Baum" is attached. The vineyards cover six hectares of vines in the single vineyard sites Insel Heylesen Werth, Posten
, St. Jost
. They mainly cultivate Riesling (4.5 ha), as well as Scheurebe, Spätburgunder and Portugieser. An absolute speciality in connection with viticulture is the Rhine island Heylesen Werth. It is named after a former owner named Hans Heyles. His heirs sold the island at auction in 1797 and it came into the possession of the ancestors of the present owners.