Rudbeckia fulgida var. deamii (Deam's Coneflower)

Scientific Name

Rudbeckia fulgida var. deamii (S.F.Blake) Perdue

Common Names

Deam's Coneflower


Rudbeckia deamii

Scientific Classification

Family: Asteraceae
Genus: Rudbeckia


Color: Yellow
Bloom Time: Summer to fall


Rudbeckia fulgida var. deamii is an erect, clump-forming herbaceous perennial that grows up to 2 feet (60 cm) tall. Stems are 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. 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.

Rudbeckia fulgida var. deamii - Deam's Coneflower
Photo via


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 a variety of 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.


Native to the central United States (Illinois, Indiana, and Ohio).


Photo Gallery

Subscribe now and be up to date with our latest news and updates.

We participate in the Amazon Services, LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliate sites.