Rudbeckia fulgida
An adaptable North American native perennial with bright yellow daisy-like blooms that thrive in full sun, tolerate drought, attract bees and butterflies, and form clumps or spread by rhizomes, commonly used in borders, mass plantings, or meadow-style gardens and suitable for cut flowers.
Common Names
Black-Eyed Susan, Orange Coneflower, Brown-Eyed Susan
Summary
Rudbeckia fulgida, commonly called Black-eyed Susan or Orange Coneflower, is a hardy perennial native to the eastern United States. It forms upright clumps 2–4 feet tall and spreads by underground rhizomes to form large colonies. The daisylike flowers have yellow to orange ray florets with a dark central cone and bloom mid-summer through fall. It prefers full sun and moist, well-drained soil but tolerates drought once established and a range of soils, including clay. The plant attracts pollinators such as bees and butterflies, provides seed for birds, and is generally deer- and rabbit-resistant. Widely grown cultivars include Goldsturm.
For cultivation, plant in full sun to partial shade in fertile, well-drained soil; consistent moisture supports longer bloom, while drought tolerance helps in dry climates. It propagates by division or seed and may self-seed in the garden. Deadheading and periodic division keep stands vigorous, with crown division advised every few years. Uses include borders, cottage gardens, prairie plantings, native or naturalized areas, and it makes a long-lasting cut flower.
Lifecycle
Perennial (can be annual or somewhere in between)
Height
24-36 inches
Spread
18-24 inches
Hardiness Zones
Zones 3-9
Sunlight Requirements
Ideally full Sun; ranges from Full Sun to Partial Shade.
Soil Type
Moist, well-drained, fertile soil
Soil Drainage
Well-drained soil
Soil pH
No specific ideal pH; sources indicate Rudbeckia fulgida tolerates acidic, alkaline, or neutral soils.
Bloom Color
Yellow
Bloom Time
Summer to Fall
Foliage Color
Green foliage, ranging from medium green to dark green.
Fall Foliage Color
Green
Leaf Lifecycle
Deciduous
Growth Rate
Fast
Seasons of Interest
Summer, Fall, and Winter
Propagation Methods
Division, Seeds, Cuttings
Attracts Wildlife
Bees, butterflies, other pollinators, and birds
Taxonomy
- Taxonomic Rank
- Species
- Author
- Aiton
- Publication
- Hort. Kew. [W. Aiton] 3: 251. 1789
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Asterales
- Family
- Asteraceae
- Subfamily
- Asteroideae
- Tribe
- Heliantheae
- Subtribe
- Rudbeckiinae
- Genus
- Rudbeckia
Inferior Taxa
Rudbeckia fulgida var. umbrosa Rudbeckia fulgida var. sullivantii Rudbeckia fulgida var. spathulata Rudbeckia fulgida var. deamii Rudbeckia fulgida var. palustris
Synonyms
Rudbeckia tenax Rudbeckia umbrosa Rudbeckia foliosa Rudbeckia speciosa var. speciosa Rudbeckia speciosa Rudbeckia truncata Rudbeckia acuminata