A few years back my wife bought some Valiant grapes for here in the yard. They were about three years old and started producing the next spring (planted in the fall). Up on a friends place this past fall we put in King of the North and Valiants, one year old, little guys. Kind of an experimental project to just get a little more diversity and production off the place. But those are two varietys that I know of and are rated for northern regions.