Stover Seed - Grand Slam is a superior blend of four elite turf-type perennial ryegrasses, and is specifically blended for California. Stover Seed - Grand Slam features excellent seedling vigor, fine texture, and higher density, leading to rapid establishment, attractive appearance, and improved traffic tolerance. Stover Seed - Grand Slam has a seeding rate of 10-12 pounds per 1000 square feet (or 400-500 pounds per acre) for new turf.