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Rubus parviflorus
Thimbleberry is a soft-stemmed, thornless shrub native to western North America, grown for its large maple-like leaves, showy white flowers and red fruit. It spreads by underground rhizomes and does best in cool, moist, partly shaded to sunny sites.
Rubus parviflorus, the fruit of which is commonly called the thimbleberry, western thimbleberry or redcap, is a species of Rubus with large hairy leaves and no thorns.
The species is native to northern temperate regions of North America. It produces red aggregate fruit similar in appearance to a raspberry; although edible, it is too soft for major commerce. It is cultivated as an ornamental.
R. parviflorus is cultivated by specialty plant nurseries as an ornamental plant, used in traditional, native plant, and wildlife gardens, in natural landscaping design, and in habitat restoration projects. The fruit has fragrance. Thimbleberry plants can be propagated most successfully by planting dormant rhizome segments, as well as from seeds or stem cuttings.
The flowers support pollinators, including of special value to native bees, honeybees, and bumblebees. The fruit is attractive to various birds and mammals, including bears. It is the larval host and a nectar source for the yellow-banded sphinx moth.
Rubus parviflorus is native to western North America from Alaska south as far as California, New Mexico, Chihuahua, and San Luis Potosí. Its range extends east to the Rocky Mountains and discontinuously to the Great Lakes Region. It grows from sea level in the north, up to elevations of 3,000 m (10,000 ft) in the south.
Garden dewberry · Allegheny blackberry · Arctic blackberry · Giant Blackberry · Rubus biflorus · Dewberry · Cloudberry · White Stemmed Bramble · Korean Bramble · Rubus coriaceus · Korean Raspberry · Holy Bramble
Text excerpted from the Wikipedia article Rubus parviflorus 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.
