‘Herbstsonne’ is an upright, rhizomatous, clump-forming perennial coneflower which typically grows 4-7′ tall. This is a substantial plant which features large daisy-like flowers (3-4″ across) with drooping yellow rays and elongated bright green center cones. Flowers bloom singly atop slender branching stems. Long summer bloom. Toothed, bright green leaves (3-6″ long). ‘Herbstsonne’ is varyingly sold as a cultivar of either Rudbeckia nitida or Rudbeckia laciniata, however some experts maintain that it is actually a hybrid between the two species. ‘Herbstsonne’ is synonymous with ‘Autumn Sun’.