Perennial
Plant of the Year
1999
Rudbeckia fulgida ‘Goldsturm’
In 1937 Heinrich Hagemann observed a glorious stand of
Rudbeckia
fulgida var. sullvantii at Gebrueder Schuetz’s nursery in the
Czech Republic. Recognizing the superiority over other commonly-grown
Rudbeckia species, Hagemann convinced his employer Karl Foerster of
Potsdam, Germany to propagate his discovery. World War II interfered with
the planned debut of the plant and it was not until 1949 that the
triumphant success of Rudbeckia fulgida var. sullvantii
renamed ‘Goldsturm’ began. ‘Goldsturm’ translates to English as
"gold storm"
A member of the Asteraceae (Compositae)
family, orange coneflower or black-eyed Susan has a native range from New
Jersey west to Illinois. ‘Goldsturm’ orange coneflower is significant
in its compact habit and 1-2 inch golden-yellow petals which encircle a
nearly black cone of disk flowers. The leaves are coarse, dark green
lanceolate to ovate, 3-6 inches long; stem leaves are smaller, almost
bract-like. The "gold storm" blankets the tops of 18-30 inch
tall plants from mid-July to October. Plant width is 24 inches.
Propagation
This excellent composite can be propagated by seed,
division, or stem cuttings. Height and colour uniformity
can vary in plants grown from seed compared to asexually propagated
plants. Germination guidelines prescribed moist chilling for 3-4 weeks at
32-35 degrees F. followed by 72 degrees F. germination temperature.
Research at The Ohio State University reported an optimal germination
temperature for untreated seeds to be 82 degrees F to 88 degrees F.
Seedlings are transplanted 28-38 days after sowing. Clump division is done
early spring or fall with spring preferred. Stem cuttings are taken as the
stem tissue begins to harden.
Cultivation
‘Goldsturm’ is a long-blooming, low
maintenance, long-lived perennial for full sun to partial shade. It
tolerates clay soils and mild droughts, but grows best in well-drained,
consistently moist soil. ‘Goldsturm’ orange coneflower performs as
well in the high heat and humid of South Carolina as it does in the -35
degrees F winters of Alberta. Plant bare-root or container-grown plants
anytime during the growing season, 18 inches apart. When establishing a
new planting, mulch to retain moisture. ‘Goldsturm’ has few pest or
disease problems. Continued on Page 2