Stover Seed Company Homepage
International BuyersProfessionalsHome Gardeners Native Seed DatabaseResourcesAbout Us

Blackhawk Perennial Ryegrass

Blackhawk Perennial Ryegrass


Blackhawk turf type perennial ryegrass gives turf professionals all of the features you're looking for in an overseeding grass... quick ground coverage, a very dark green color, fine texture, disease resistance, and a smooth transition in the spring.


Excellent seedling vigor
Fine texture
Higher density
Dwarf leaf orientation
Dark blue-green color
High endophyte level
Improved disease resistance
Better heat and drought tolerance
Improved mowability

Rapid establishment
Attractive, uniform appearance
Improved traffic tolerance
Less mowing, lower mowing costs
Less fertilizer needed
High resistance to above ground insects
Improved turf quality, less use of chemicals
Improved summer performance
Reduced leaf shredding during mowing


"Blackhawk" is a natural for overseeding dormant warm season grasses or for permanent turf on Golf Courses, Sportsfields, Cemeteries, Parks, Commercial developments, Residential lawns

Seeding Rates

New turf: 10-12 pounds per 1000 square feet or 400-500 pounds per acre.
Overseeding: 6-8 pounds per 1000 square feet or 250-350 pounds per acre.


Germination: 6-12 days.
First mowing: aproximately 21 days.
First limited use: aproximately 30 days.

Adaptability & Care

Climatic Conditions: All (except high altitude)
Soils: Sandy to heavy clay. Not good for extremely wet or shaded areas.
pH range: 5.5 to 8.5.
Fertilization: 2 to 4 pounds of actual nitrogen per 1000 sq ft per year. Use a balanced fertilizer with a 3:1:2 ratio of NPK with sulphur.
Mowing height: 1/2 to 1 1/4 inches in cool season, 1 1/2 to 2 inches in warm seasons.

Quality Assurance

Blackhawk is a registered trademark of Stover Seed Company and Turf Merchants and is available only from Stover Seed or an authorized dealer. Blackhawk is exclusively distributed by Stover Seed and represent the latest improvements in turfgrass breeding and development.
Accept no substitutions.

Ingredients & Specifications

Blackhawk Perennial Ryegrass

98% Minimum purity.
90% Minimum germination.
300,000 seeds per pound.

9180 San Fernando Road • P.O. Box 1579 • Sun Valley, CA 91353
(213) 626-9668 • (800) 621-0315 • FAX (213) 626-4920

Legal Site Map Home Contact Us Linked In Facebook