Scientific Name
Rudbeckia fulgida var. deamii (S.F.Blake) Perdue
Common Name(s)
Deam's Coneflower
Synonym(s)
Rudbeckia deamii
Scientific Classification
Family: Asteraceae
Genus: Rudbeckia
Origin
Rudbeckia fulgida var. deamii is native to the central United States (Illinois, Indiana, and Ohio).
Flower
Color: Yellow
Bloom Time: Summer to fall
Description
Rudbeckia fulgida var. deamii is a clump-forming herbaceous perennial that grows up to 2 feet (60 cm) tall. Stems are erect, sturdy, and pubescent with leathery dark green oblong leaves. The blades are about 5 inches (12.5 cm) long and 2 inches (5 cm) wide. Leaves are toothed and pubescent.
The flower heads are borne in profusion, almost covering the foliage. Each daisy-like head is up to 2 inches (5 cm) across, with 12 to 21 golden-yellow rays that encircle a robust dark brown cone loaded with disc florets. Flowering begins in late summer and continues until fall.
Hardiness
USDA hardiness zone 4a to 9b: from −30 °F (−34.4 °C) to 30 °F (−1.1 °C).
How to Grow and Care
Black Eyed Susan plants are drought resistant, self-seeding, and grow in various soils. Growing Black Eyed Susans prefer a neutral soil pH and a full sun to light shade location.
Black Eyed Susan care will often include deadheading the spent blooms of the flower. Deadheading encourages more blooms and a sturdier, more compact plant. It also can stop or slow the spread of the Black Eyed Susan flower, as seeds are contained in the blooms. Seeds may be allowed to dry on the stem for reseeding or collected and dried in other ways for replanting in other areas. Seeds do not necessarily grow to the same height as the parent from which they were collected.
The Black Eyed Susan flower attracts butterflies, bees, and other pollinators to the garden. Deer, rabbits, and other wildlife may be drawn to Black Eyed Susans, which they consume or use for shelter. When planted in the garden, plant the Black Eyed Susan flower near Lavender, Rosemary, or other repellent plants to keep wildlife at bay.
See more at How to Grow and Care for Black Eyed Susan.
Links
- Back to genus Rudbeckia
- Plantpedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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