Q.Brussel Sprout Plants
What do I do with my Brussel plants over the winter? Also, what do I do with my sunflowers and grapes?

Certified GKH Gardening Expert
While technically the Brussel sprout will produce a second crop, the second crop's quality will not be nearly as good as the first. It is better to start over in spring and get a quality harvest from new plants.
Pull up the sunflowers, as these are annuals and will not return next year, tohugh you may collect the seeds for replanting. As for the grapes, they will go dormany and come back in spring so there isn't anything special that they require.