Winter wheat is planted to help out with declining hay towards March and April. This year we planted rye for the first time because we heard it grew 3x faster than winter wheat. We plan on either grazing it, or chopping it for feed for our dairy cows. As far as letting it mature, and then what? cutting it, is that what you mean, I don't think that is done, stricltly pasture or green chopping, although I could be wrong.
GMN