As the German namesake suggests, this double-flowering selection of the valiant North American native fashions terminal clusters of 2 to 3 in. wide, densely petaled bright yellow flowers with greenish yellow centers. The splendid floral display beguiles butterflies and songbirds all summer perched atop sturdy stems and attractive, serrated, lance-shaped dark greenery. An adaptable 1934 Karl Foerster introduction that appreciates superb drainage, ‘GoldgrÜnherz’s lucent upright clump can be featured amid Phlox paniculata ‘Nicky’ and Liatris ‘Alba’ in perennial borders, meadow-style vignettes or cottage gardens. Deer, dry conditions, clay or rocky soil and otherwise infertile sites do not deter it.

Blooms July–September

Size: 3-1/2' – 4' 0" high x 2' 0" – 3' 0" wide.

Hardy to zone 4.