Try Imperial Whitetail alfa-rack plus. Whitetail institute's r and d team designed Alfa-Rack Plus to produce an extensive deep-root structure that helps plants thrive on hilltops and hillsides. Alfa-Rack Plus is a blend of grazing alfalfas which are high-protein, drought and cold tolerant. Grazing alfalfas have more leaf relative to stem and are more palatable to deer than ordinary hay alfalfas. Alfa-Rack Plus is deep rooted and has been developed to grow successfully on hilltops, hillsides and in -well-drained, lighter, upland soils.