Black Eyed Susan

Planting Rate 1 PLS lb/acre or 1 Bulk oz. covers 1,361 sq. ft.
Plant Height 2 -3 Ft.
Seed Count 1,500,000 Seeds per LB.
Botanical Name Rudbeckia hirta
Life Cycle Perennial
Environment Full Sun
Preferred Sites Upland/Grassland - Disturbed
Bloom Period May-September
Flower Color Yellow
Pollinator Value Very Good


Black-eyed Susan, is a biennial forb with yellow ray flowers and dark brown spherical centers.

USES: Black-eyed Susan is an important component in critical area treatment plantings along with grasses, legumes, and other forbs when used along road cuts, hillsides, and other areas subject to erosion. This plant offers protection and food to several song and game birds. Black-eyed Susan can be used for landscaping and in wildflower gardens.

ADAPTATION AND DISTRIBUTION: Black-eyed Susan is naturalized is most of the states East of Kansas and the bordering areas of Canada. It is adapted throughout the Northeast on soils with a drainage classification range from well-drained to somewhat poorly drained. It will perform acceptably on droughty soils during years with average or above rainfall, but best growth is achieved on sandy well-drained sites. It is winter hardy in areas where low temperatures are between -30 and -20 degrees.

ESTABLISHMENT: Black-eyed Susan is easily established with most critical area seeding techniques. Generally ½ lb. of seed per acre is sufficient in mixes with conservation grasses, legumes, and other forbs. Once established, new seedlings will be produced from the preceding crop; the stand may perpetuate itself indefinitely.

MANAGEMENT: After establishment, competing perennial vegetation should be controlled through the use of mechanical or chemical practices. IF competing vegetation is not controlled, one will observe a decrease in the number of Black-eyed Susan plants.

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