Frontenac Gris, literally “Grey Frontenac,” is used in white wines. Viticulturally, it is identical to Frontenac with vigorous growth and high yields.
Frontenac Gris has survived in temperatures as low as -38° F. However, unlike Frontenac, Frontenac Gris is ready for harvest in mid-season. Its resistance to disease is decent with a moderate susceptibility to powdery mildew and black rot and a very low susceptibility to downy mildew.
The grapes are small and grey, grown in medium-sized, loose clusters. Because of their sweetness, they are often used in high quality table and dessert wines, as well as ice wine. Aromas of peach, apricot, citrus, and pineapple may be detected in Frontenac Gris.