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
