Are there any wineries near you?
I've got a friend who's turned an unused pasture into a small vineyard, as a way to make a little extra money to pay off the property taxes. They found a local winery to buy their grapes(minus what they need for their own use), the winery helped them pick what grapes to grow and other advise on how to get the vineyard started up.
That could be something to look into. That is if you could find a winery near you, I know there is a few around Vermillion and Sioux Falls.