Heinrich Hagemann, although retired, maintains an active interest in his company, the world-renowned Hagemann Staudenkulturen. Plant width is 24 inches. This excellent composite can be propagated by seed, division, or stem cuttings. Height and color uniformity can vary in plants grown from seed compared to asexually propagated plants. Research at The Ohio State University reported an optimal germination temperature for untreated seeds to be 82F to 88F. Seedlings are transplanted 28-38 days after sowing.
Clump division is done in early spring or fall with spring preferred.
Stem cuttings are taken as the stem tissue begins to harden. Goldsturm' orange coneflower performs as well in the high heat and humidity of South Carolina as it does in the -35F winters of Alberta. Goldsturm' has few pest or disease problems. Landscape Uses Rudbeckia fulgida var. Goldsturm' works exceptionally well in commercial landscapes because of its durability and dramatic visual impact.