Rudbeckia is a genus of mostly perennial North American daisy-family plants, including the common garden coneflowers and black-eyed Susans. Give them full sun and well-drained soil, and they bloom reliably in mid to late summer.
Family
Asteraceae (Daisy family)
Grows as
Annual, Perennial
Light
Full sun
Water
Water regularly while establishing, then water deeply during dry spells; established plants are fairly drought tolerant.
Soil
Average to lean, well-drained soil; tolerates poor soils.
Temperature
Hardy in cold winters; most species tolerate frost well.
How easy
Easy
Safety
Not known to be toxic
About
Rudbeckia () is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.
The species are herbaceous, mostly perennial plants (some annual or biennial) growing to 0.5–3.0 m (1.6–9.8 ft) tall, with simple or branched stems. The leaves are spirally arranged, entire to deeply lobed, and 5–25 cm (2.0–9.8 in) long. The flowers are produced in daisy-like inflorescences, with yellow or orange florets arranged in a prominent, cone-shaped head; "cone-shaped" because the ray florets tend to point out and down (are decumbent) as the flower head opens.
Uses
Many species are used in prairie restorations, for ornamental use, and by livestock for forage. An abundance of these plants on a rangeland indicates good health. They are deer and rabbit resistant.
Text excerpted from the Wikipedia article Rudbeckia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.