Frontenac’s overall viticultural performance and excellent wine quality are directly responsible for its success in Minnesota, where more of its vines are growing than any other variety. This recently released red wine grape from the University of Minnesota is a cross of French-America hybrid Landot 4511 and native American Vitis ripara. The vine’s chief advantage is its extremely vigorous and productive nature. The vine is extremely cold hardy, at least to -30 F (approx. -34 C) and has adapted well to the inhospitable winters of Minnesota and Wisconsin. Frontenac is also very resistant to disease, with good resistance to Powdery Mildew and Botrytis bunch rot, and almost complete immunity to Downy Mildew. High sugar levels, along with high acidity, are typical at harvest. Malolactic fermentation is vital to lessen the wine’s acidity. Wines have been described as being deeply colored, with a pleasing cherry aroma, and plum and berry often evident.