This study was conducted to evaluate the productivity of five Bermudagrass cultivars (Cynodon dactylon (L.) Pers.: Giant, Cheyene, Mohawk, Panchero Frio, Common), three Bahiagrass cultivars (Paspalum notatum: TifQuik, Tifton 9, Argentine), and one Teff grass cultivars (Eragrostis tef: Tiffany) by using broadcast and drill seeding method for each species in the experimental field (450 m altitude, Gyorae-ri Jochon-eup, Jeju) in order to cultivate warm season grasses as forage during summer season. Teff grass and Bermudagrass showed healthy germination and emergence after the seeding but Bahiagrass showed average germination and emergence in terms of growth after seeding. Broadcast seeding was more productive than drill seeding in all the species when the quantity was compared. The investigation on freeze damage of southern grasses during the winter revealed that, in case of Bermudagrass, Giant could not survive in winter in the experimental field that has altitude of 450 m but Cheyene, Mohawk, Panchero Frio and Common could survive in winter even though it had substantial cold-weather damage. In case of Bahiagrass, there were minimal freeze damage in TifQuik and Tifton 9 but it was severe in Argentine. The investigation on productivity of species after wintering revealed that TifQuik and Tifton 9, a species of Bahiagrass, had the highest productivity in comparison to all the other species. Therefore, an adequate species of grass should carefully be selected when cultivating warm season grasses as forage and grazing pasture for summer season. (Key words: Bermudagrass, Bahiagrass, Broadcast and drill seeding, Warm season grass)