SeaIsle Supreme Paspalum

This new fine-bladed seashore paspalum cultivar, developed by Dr. R.R. Duncan at the University of Georgia's Griffin Experiment Station, is ideal for golf course greens fairways, tees, and roughs. It can be used wall to wall on a golf course or in select areas such as a putting green. It's a grass that thrives on salt water. You can irrigate SeaIsle Supreme using a seawater blend, or even straight ocean water with the right management practices. It also grows quite well when watered from recycled or effluent sources.


SeaIsle Supreme has a very fine leaf blade with excellent green color that can be closely mowed to heights of 1/8 inch to 3 inches. The grass is a very aggressive grower and can be grown in and playable two to three weeks faster that other Paspalums.

Water Quality Tolerance

SeaIsle Supreme is the most salt tolerant Paspalum that is commercially grown.. It will proliferate in soils irrigated with water containing 6,500 ppm dissolved salts, and will show only a 50% reduction in growth at 12,000 ppm. It is considerably more salt tolerant than Bermudagrasses and Zoysiagrass.

Weed Tolerance

SeaIsle Supreme spreads quickly during establishment and forms a dense turf which will compete with the presence of weeds when properly maintained. However, all Paspalums selections have relatively poor sensitivity to pre- and post-emergent selective herbicides.

Insect Pest Tolerance

SeaIsle Supreme is susceptible to insects that feed on foliage of grasses.

Soil Fertility Range

SeaIsle Supreme grows best in soils with a pH above 6.0. It performs best on a low level of applied Nitrogen, approximately 3 pounds N/1000 square feet per year. Given a balanced N:P:K program according to soil tests, Sea Isle 1 performs well in a fertility program of about 50 to 70% of the amount required for Hybrid Bermudagrasses.


All paspalum selections are sterile, and must be propagated by transferring stolons or sod.