What type of plant is Rudbeckia?
Rudbeckia (/rʌdˈbɛkiə/) 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. These herbaceous plants, which grow to an average height of between 50 and 300 cm, spread by seeds, rhizomes, or root runners. Rudbeckia leaves grow alternately on the stem and are dark green in colour. They can be simple to deeply pinnately lobed with smooth, serrated or coarsely toothed margins.Rudbeckia (rood-bek-e-a) is a plant genus in the sunflower family (Asteraceae). The species are commonly called coneflowers and black-eyed-susans; all are native to North America and many species are cultivated in gardens for their showy daisy-like yellow or gold flower heads, some are even red or brown.
Is Rudbeckia hirta poisonous?
The Black-eyed Susan (Rudbeckia hirta) is a wildflower that blooms from June to October. They have bright yellow, daisy-like petals. Although the black-eyed Susan has not been known to poison humans, it should not be eaten. It can cause allergic skin reactions and asthma attacks in people sensitive to the plant. One of the most iconic species, Rudbeckia hirta, features radiant yellow petals encircling a dark, almost mysterious central disk – hence the common name “Black-eyed Susan. This species is native to North America and is often used in wildflower meadows, cottage gardens, and as a cut flower.Rudbeckia like full sun, fertile, moist soil and can be planted in flower borders, beds, patios, containers and cut flower gardens.