Smaragd is a designation of ripeness for dry wines used exclusively by members of the Vinea Wachau. The wines must have minimum alcohol of 12.5%. The grapes are hand-harvested, typically in October and November, and are sent directly to press where they spontaneously ferment in stainless-steel tanks.

Wachstum, meaning “Growth” or “Cru,” is a nursery for Toni Bodenstein who planted 25 different nursery clones of Riesling 460 meters in elevation at the top of Hinter Seiber. When planted in 1990, the goal of Wachstum Bodenstein was to preserve biodiversity. First produced in 1993, it is now one of Prager’s most sought-after wines.