In the mountains of Trentino and Alto Adige (also called South Tyrol), wine-growing is restricted to the valley floor and the foothills of the mountains but it has, nonetheless, very ancient roots and important traditions.In Alto Adige, i.e., the province of Bolzano, wine-growing is affected by two climatic factors: the abundance of sunlight during the summer, which guarantees full ripening of the grapes, and the wide diurnal temperature variation, which facilitates the accumulation of aromatic substances on the skin of the grapes and helps maintain the acidity in the flesh. The wines of Alto Adige stand out for their intense, well-defined aromas and freshness of taste. It is, in fact, a region famous for its heady, refreshing, and elegant white wines. But there is no shortage of noteworthy reds, such as the great Pinot Noirs or sophisticated spumante produced using the Traditional Method.
The Alto Adige DOC designation (or Südtirol in German) extends throughout the province but is restricted to the arable areas along the valleys of the Adige and Isarco rivers. Both white and black grapes are cultivated in Alto Adige, especially international varieties such as Chardonnay, Pinot Blanc, Sauvignon Blanc, Pinot Gris, Pinot Noir, Cabernet Sauvignon and Merlot. Gewürztraminer (Aromatic Traminer), a grey grape variety considered native to the municipality of Tramin on the right bank of the River Adige, is also cultivated; Gewürztraminer is an aromatic variety and produces very fragrant wines. The black Vernatsch (Schiava in Italian) and Lagrein grape varieties are also native. Schiava is a family of grapes with large berries and therefore the flesh/skin ratio favours the flesh.