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Grown primarily in the Piedmont, Barbera is the second most planted variety in Italy. It has a high level of natural acidity even when fully ripe, so is best suited for hot climates.

Cabernet Sauvignon is a vigorous, variety with late bud break and late maturity. It is one of the world's most widely renowned red wine varieties, grown in nearly every major wine producing country among a diverse spectr...

Malbec was once popular in Bordeaux, but plantings have declined as it is susceptible to various viticultural hazards such as frost, coulure, and bunch rot. Known to require a milder climate than varieties such as Merlot...

Nebbiolo is native to the Piedmont region in northern Italy where it produces the region's most distinguished wines, and some of Italy's best, long-lived wines.

Norton (also known as Cynthiana) is a V. labruscana x V. aestivalis hybrid with a long history in eastern US wine production, particularly in Missouri and Virginia. Norton produces small to medium clusters of firm, roun...

An important variety in Uruguay, Tannat produces deeply colored wines that are astringent and often blended with other varieties such as Cabernet Franc and Cabernet Sauvignon.

Tempranillo is one of Spain's most important varieties, it can produce wines that are deeply-colored and long-lasting, typically not high in alcohol content.

Valvin Muscat produces a highly aromatic, high quality muscat wine with improved winter hardiness and disease resistance over its vinifera parent (Muscat Ottonel). Only sold as grafted vines as own-rooted vines typically...

Blanc du Bois is a Pierce's disease tolerant cultivar with very good wine quality potential. Grown successfully where temperatures do not drop below +10F (USDA hardiness zone 8). Grown in coastal areas in the southeast U...

Black Spanish is an older variety that is tolerant to Pierce’s disease (it can carry the disease and thus be a source of infection if insect vectors are present with no reduction in yield, but Black Spanish vines sold ...

This red wine grape makes wine with characteristics of both Cabernet Sauvignon and Petite Sirah and is resistant to Pierce's Disease. This selection ripens early and the berries are relatively large and the well fille...