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Erigeron rydbergii
Rydberg's fleabane is a tiny alpine perennial daisy from the Rocky Mountains of the western US, rarely more than about 6 cm tall, with blue or purple flower heads. It is grown mainly by alpine and rock garden enthusiasts who can give it cool, gritty, well-drained conditions.
Erigeron rydbergii is a North American species of flowering plant in the family Asteraceae known by the common name Rydberg's fleabane. It is native to the western United States, in the Rocky Mountains and other nearby ranges in the states of Montana, Wyoming, Idaho, and Utah.
Erigeron rydbergii grows in subalpine to alpine slopes at high elevations. It is a tiny perennial rarely more than 6 centimeters (2.4 inches) tall, forming a thick taproot. The inflorescence generally contains only 1 flower head per stem. Each head contains 15–35 blue, purple, or rarely white ray florets surrounding many yellow disc florets.
Dwarf horseweed · Lance-leafed Darwin's Shrub · Thin-leafed Darwin's Shrub · Fleabane · Abajo fleabane · Bluewater fleabane · Blue Fleabane · Erigeron adscendens · Hall's fleabane · Stalked fleabane · Alice Eastwood's fleabane · Erigeron allochrous
Text excerpted from the Wikipedia article Erigeron rydbergii 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.
