Seashore paspalum (Paspalum vaginatum) ecotypes vary greatly in salinity tolerance as mature stands; however, information on salinity tolerance during establishment is limited and may differ from mature plants.  Five seashore paspalum ecotypes (SeaIsle 1, SeaIsle Supreme, SeaSpray, Adalyad, GA 03.527.8) and TifSport bermudagrass (Cynodon dactylon x C. transvaalensis) were evaluated in a greenhouse study under salinities of 0, 3,000, 6,000, 12,000, and 18,000 ppm sea salt in study 1; and 0, 3,500, 7,000, 10,500, and 14,000 ppm in study 2. Four stolon sprigs of 10 cm length each were planted in 27 x 13.3 x 11.5 cm deep containers with drainage.  One-half of each sprig was placed in a 1.9 cm deep slit and covered with soil. The soil was a sandy loam plus topdressing sand (4:2 by volume).  Irrigation was applied at 0.81 cm (300 ml) water every third day which allowed for some drainage with each irrigation. Periodically, live shoot counts, percent coverage, clipping weights (5.2 cm cutting height), and direct soil EC reading were conducted. At the end, soil samples were obtained to determine saturated paste extract, ECe, data; and total above-ground, live tissues were collected.