The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Penstemon hallii
Penstemon hallii, commonly Hall's penstemon or Halls alpine penstemon, is an alpine plant that is native to just the Southern Rocky Mountains of Colorado. It has showy flowers in shades of blue or purple the appear in summer.
Hall's penstemon is endemic to the state of Colorado. It grows in the high mountains of central Colorado as far as Jackson County in the north of the state southwards nearly to New Mexico in Conejos and Archuleta counties. They are found at elevations of 2,800 to 4,000 meters (9,200 to 13,100 ft).
Hall's penstemons are grown by enthusiasts in rock gardens, alpine garden troughs, and specialized alpine houses. A number of penstemons with similar growth habits such as stiffleaf penstemon (Penstemon aridus) and grayleaf creeping penstemon are similarly grown in troughs. Specialists in alpine gardening regard it as, "Quite showy and not difficult." Though, like other alpine species they require care to ensure their growing substrate drains freely and they remain cool. They are grown in Germany, but only recommended for gardeners with an interest in giving the plants protection against cold and damp in the winter and a well drained space with a sunny exposure. It is grown from seed or propagated by division of plants in mid-spring, April in the northern hemisphere.
Firleaf beardtongue · Stemless beardtongue · Sharpleaf penstemon · Los Alamos beardtongue · Alberta beardtongue · White penstemon · White River Beardtongue · Whitemargin beardtongue · Gilia beardtongue · Penstemon angelicus · Siskiyou beardtongue · Broadbeard beardtongue
Text excerpted from the Wikipedia article Penstemon hallii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
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.
