an unknown species of rudbeckia growing in a garden

asteraceae black centres colour coneflower coneflowers cultivar cultivation day dream environment eyed flora florets flowering flowers garden gardeners gardening growing herbaceous horticulture hot ireland irish kingdom long lovers nature northern perennial perennials petals photographed plant plants pollen private rudbeckia rudbekia shaped slender species specimen stalks star stemmed summer sun sunshine susan tall united unknown variety well