Frontenac (grape)
| Frontenac | |
|---|---|
| Grape (Vitis) | |
| Frontenac grapes on the vine. | |
| Color of berry skin | Noir | 
| Species | 50% Vitis riparia × 50% Landot noir | 
| Origin | University of Minnesota | 
| Notable regions | Germany | 
| VIVC number | 15904 | 
Frontenac (French pronunciation: [fʁɔ̃tnak]) is an interspecific hybrid grapevine that is a result of research and crossbreeding by the University of Minnesota. It was grown from a crossing of the complex interspecific hybrid Landot 4511 and a very cold-hardy selection of Vitis riparia. It was released in 1996.
Frontenac gris is a white wine version of Frontenac, introduced in 2003. It started as a single bud mutation of Frontenac, yielding gray (thus named gris) fruit and amber-colored juice. Frontenac blanc was introduced in 2012 from white fruited mutations found in both Frontenac and Frontenac gris vines in Minnesota and Canada.