Four species of clover were interseeded into established fall rye and winter wheat and compared with a non-interseeded control. The clover interseeding had no significant negative or positive effect on yield of the winter wheat and fall rye on a relatively dry growing season. The clover failed to adequately establish due to dry surface soil conditions following seeding and low growing-season rainfall Some treatments had 90% seed or seedling mortality. Subterranean clover had higher plant establishment than crimson, Berseem or Persian clovers and seemed to be relatively tolerant of the difficult conditions. A video of field-scale interseeding of clover garnered considerable attention and discussion on Twitter.