Roesler

Roesler is a red Austrian wine grape developed in 1970 by Dr. Gertraud Mayer at Höhere Bundeslehranstalt und das Bundesamt für Wein- und Obstbau in Klosterneuburg, Austria. It is the result of a crossing Zweigelt x.
It is named after the former director of Austria's oldest viticultural college, Leonard Roesler, who was a German-Austrian chemist and oenologist. The variety is deep in colour and with abundant extract. It is frost resistant and can withstand temperatures as low as -25°C. It is also resistant to mildew.