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Perennial Ryegrass Overseeding Blend


Perennial ryegrasses are very competitive cool season grasses that grow in a wide range of climates. It does best in full sun but will tolerate light shade. Desirable traits of perennial ryegrass are high wear tolerance and rapid establishment making it popular for sportsfields, playgrounds and parks. Grand Slam is a blend of four proven perennial ryegrass varieties that establish quickly, have excellent turf quality and are ideal for overseeding existing grasses.



  • Fine texture & high density
  • Excellent seedling vigor
  • Good heat and drought tolerance
  • Endophyte enhanced Improved mowability


  • Low poa invasion
  • Fast establishment
  • Improved summer performance
  • Improved insect and disease tolerance
  • Reduced shredding during mowing


Grand Slam is a natural for sportsfields and high traffic areas such as:

* Golf Courses * Sportsfields * Playgrounds * Sod Production * Parks * Lawns

Seeding Rates

New turf: 10 pounds per 1,000 square feet or 400 pounds per acre. Overseeding existing turf: 6 to 10 pounds per 1,000 square feet or 250-400 pounds per acre.


Emergence: 3-5 days under optimum temperature range between 68-86 degrees, longer under cooler temperatures. First mowing approximately 14 days after emergence (may be longer under cooler temperatures). First limited use approximately 21 days after emergence.


GRAND SLAMTM PERENNIAL RYEGRASS BLEND 25% Allaire 3 Perennial Ryegrass 25% Evening ShadePerennial Ryegrass 25% Patriot 4 Perennial Ryegrass 25% Rodeo 3 Perennial Ryegrass
98% Minimum purity 90% Minimum germination 230,000 seeds per pound Origin: Oregon/Washington

Varieties listed are protected under the US Plant Variety Protection Act. GRAND SLAM™ is a registered trademark of Stover Seed Company.

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