FRONTENAC 

 

 

Frontenac

GR-OR-RYT-XCH-30F

 

University of Minnesota variety. Vigorous, highly productive. High acid and high sugar fruit. Very winter hardy, to -30F. Requires cluster thinning. Buds early, ripens mid season. 

Rootstocks: 5C

 

*Patented Royalties Charge: $0.50/vine

                           

                            FRONTENAC

 

 AMBERG  GRAPEVINES​

         Classification Key 

 

OR- Own-Rooted                    GR- Grafted                       CH- Cold Hearty

XCH- Extreem Cold Hearty   DR- Disease Resistant     WH- White Grape

RD- Red Grape                        HB- Hybrid                        NA- Native

ON- Ornamental                    RYT- Royalties