I'm embarrassed we had not taken advantage of this gem in all the years we've lived here as adults. I'm not sure how long the grounds have been open to the public as such, but folks were coming with lawn chairs, picnic baskets, prepared to settle in for an entire afternoon-all encouraged. In the front there is a corn hole game set up (that's bean bag toss for non mid westerners), and in the back where the music was playing, two boccie ball courts. There is a wildflower space that lines the vineyard, leading up to a row of pine trees, the border to a corn field on the other side. A small, developing sculpture garden provided lots of open space, and the grounds themselves will connect to a bike trail nearby.
This is the vineyard by us, but I've enjoyed several on the Great River Wine Trail, which describes the circuit of the various wineries that run along the Mississippi. If you are ever in my part of the US, give me a hail. I'd join you for a glass or two.