Tri-Plex Perennial Ryegrass Blend

Tri-Plex Rye is a moderately priced, high quality perennial ryegrass blend well suited for permanent ryegrass applications and the overseeding of tees, fairways, and athletic fields. The dark green, fine textured blend offers a turf that can be modified to meet individual and regional requirements. Tri-Plex Rye is composed of three named proprietary perennial ryegrass varieties from Pennington Seed.

  • Tri-Plex Rye has shown excellent high and low temperature stress tolerance throughout the range of perennial ryegrass adaptation. 
  • Tri-Plex Rye is an excellent choice for athletic fields, tees and fairways. 
  • Tri-Plex Rye has a dark green color that looks good even when fertilizer levels run low. 
  • This blend also transitions out well in the spring when used as an overseeding for dormant warm season grasses. 
  • The overall mowing quality at different heights of cut, along with its adaptation to different management regimes, resiliency from damage, and its manageable transition from ryegrass to bermudagrass make this an ideal formulation for multiple uses.

  • Recommended Use: Golf Courses (Tees & Fairways), Athletic fields, and Overseeding Warm Season Turfgrasses

    Tri-Plex tech sheet


    Establishment & Maintenance:
    Under ideal conditions, germination begins in 6 days or less. If overseeding, care must be taken to ensure adequate seed to soil contact. Subject to germination rate, first mowing may begin at 21 days after sowing. Recommended mowing heights for tees is 3/8 to 5/8 inch (9.5 - 15.9 mm) 5 to 6 times per week, for fairways is 1/2 to 3/4 inch (12.7 - 19.1 mm) 3 to 4 times per week Tri-Plex responds to 1/2 lb Nitrogen per application. (5 to 10 lbs per 1000 sq ft maximum per year). A repeat application only as grass shows need due to fading color.

    Seeding Rates:
    Permanent Turf, Parks, Athletic Fields & Home Lawns 5 - 10 lbs/1000 sq. ft. (2 - 5 kg/100 sq. meters) 
    Tees (Overseeding) 15 - 25 lbs./1000 sq. ft. (6 1/2 - 11 kg/100 sq meters) 
    Fairways (Overseeding) 250 - 400 lbs./acre (280 - 448 kg/hectare)
    Climatic Zones: 3, 4, 5, 6, 7, 8, 9, 10 (may not be adaptable to all areas within each climatic zone)