Blue Door Vineyard's Grapelog :: Grape-growing, winemaking & wine

The link below is to a set of documents put together by the kind people at Iowa State University. They have  compiled information from different sources on all grapevines that are generally considered to be cold hardy. Very helpful information for the grape grower and the wine maker.

http://viticulture.hort.iastate.edu/cultivars/cultivars.html