A tall, robust native perennial of North American floodplains and moist woods, grown in gardens for its yellow daisy-like flowers. It thrives in moist soil and sun to part shade.
Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep soil consistently moist, especially in summer, and avoid drying out.
Hardy in cold winters; protect young plants from late frost.
How easy
Easy
Safety
Toxic
Edible
Yes, some parts
Native range
C. & E. Canada to C. & E. U.S.A.
Climate
temperate
About
Rudbeckia laciniata, the cutleaf coneflower, is a species of flowering plant in the family Asteraceae. Other common names include cutleaf, goldenglow, green-headed coneflower, tall coneflower, sochan and thimbleweed. It is native to North American floodplains, stream banks, and moist forests. Although toxic to animals, the leaves have culinary uses.
How to grow it
Rudbeckia laciniata is widely cultivated in gardens and for cut flowers. Numerous cultivars have been developed, of which 'Herbstsonne' ("Autumn sun") and 'Starcadia Razzle Dazzle' have gained the Royal Horticultural Society's Award of Garden Merit. The cultivar 'Goldquelle' features double yellow, pom-pom blooms that are 8 cm across.
Rudbeckia laciniata has long been cultivated as an ornamental plant and arrived in Paris in the private garden of Vespasian Robin at the beginning of the 17th century. Caspar Bauhin also received this ornamental plant from Robin in 1622, who described it as 'Doronicum americanum laciniato folio'. The first recorded garden in Germany is Altdorf, dating back to 1646. The double-flowered form, which is mainly cultivated, has been known since around 1894. The first naturalizations on river banks in Central Europe were observed in the 18th century. Anton Johann Krocker reported about it in 1787 in Queistal near Flinsburg in eastern Upper Lusatia.
Safety
The plant is somewhat toxic to livestock. One report cites circumstantial evidence of poisoning to horses, sheep and pigs.
Where it grows
It is native to North America, where it is widespread in both Canada and the United States. Its natural habitat is wet sites in floodplains, along stream banks, and in moist forests.
Uses
Traditionally, the young leaves have been gathered from the wild and eaten in the early spring. They are greatly favored as a potherb (cooked). Although some references suggest using this plant as salad greens (raw), traditional use is as cooked greens. This is assumed to be done to remove toxins, although there is little evidence of their presence.
Text excerpted from the Wikipedia article Rudbeckia laciniata 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.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.