This 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 fairways, tees, and roughs. It makes a fine choice for sports turf, home lawns and commercial landscaping, too. It’s a grass that thrives on salt water. You can irrigate Sea Isle 1 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.
Sea Isle 1 can only be sold as certified sod or sprigs, and only by licensed members of the Sea Isle Growers Association. This group of quality-conscious sod producers has agreed to the stringent production practices set up by the Georgia Seed Development Commission. You can be assured of Sea Isle 1’s genetic purity. As a certified turfgrass, it’s grown, inspected and sold under a rigorous set of guidelines designed to ensure ongoing purity and uniformity.
Sea Isle 1 can be used on fairways and tees. It adapts well to most all soils and does exceptionally well in areas where it is difficult to grow bermudagrass.
Sea Isle 1 has a very fine leaf blade with excellent green color hat can be closely mowed to height of 1/4 inch.
Water Quality Tolerance
The most outstanding feature of Sea Isle 1 is its exceptional salt tolerance. It will proliferate in soils irrigated with water containing 2,500 ppm dissolved salts, and will show only a 50 percent reduction in growth at 5,000 ppm. It is considerably more salt tolerant than bermudagrasses and zoysiagrass.
Sea Isle 1 spreads quickly during establishment and forms a dense turf which will compete with the presence of weeds when properly maintained. However, all paspalum selections are sensitive to many pre- and post-emergent selective herbicides. Use only pesticides labeled for paspalum.
Soil Fertility Range
Sea Isle 1 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 percent of the amount required for Hybrid Bermudagrasses.
All paspalum selections are sterile and must be propagated by sod or sprigs.