There's a great deal of history to be found on most university campuses--but not just in the buildings and the libraries.
There's also history be found in the trees, and they have a story to tell. Today, on our "Horticulture Friday" show, Charity speaks to Iowa State University professor of horticulture Bill Graves, who tells us about the Heritage Tree Program at Iowa State. Also on the broadcast is horticulturist Richard Jauron of Iowa State.
