This grower is sure of this plant identification.
tall plants, flower for ages great with any perennial and grasses
Rudbeckia genus (Coneflower). There are about 20 species of annuals, biennials and perennials with bright, daisy-like composite flowers, which are either single, double or semi-double and are in tones of yellow with some varying from green through to purple and black.
They will prefer loamy, moisture-retentive soil in full sun or partial-shade.
Flower arranging, prairie planting, beneficial insects.