rudbeckia fulgida var. sullivantii 'goldsturm' blooms with yellow flowers in july. potsdam, germany

germany rudbeckia fulgida blooms yellow july orange coneflower perennial species plant family asteraceae potsdam flowers flowering plants summer flower nature beautiful garden blossom flora beauty green color natural floral bloom outdoor season field colorful sunny meadow petal botanist blooming outdoors black center sullivantii 'goldsturm'