Riesling Grapevine - Grafted 3309 (10)Riesling is the noble grape variety of Germany, one of the most hardy vinifera varieties best suited for cooler climates and highly susceptible to Botrytis infection. Riesling is made in a wide range of wine styles depending on the climate in which it is grown, from dry to semi sweet to late harvest wines often made with highly botrytized fruit.