Intensive-early stocking in the Kansas Flint Hills has greatly increased livestock production efficiency. The potential grazing of regrowth on intensive-early stocked Flint Hills pastures was studied by monthly mowing to 5-cm height form October to April, 1983-1985. Those treatments had no effect on total nonstructural carbohydrates (TNC) in Andropogon gerardii Vitman rhizomes or on herbage production the following seasons. Since there was no reduction in herbage yield for any mowing date, cattle producers can apparently restock IES pastures after 1 October. Key Words: total nonstructural carbohydrates, Andropogon gerardii , winter removal, near-infrared reflectance spectroscopy