Rock Garden Plants
Penstemon  cyaneus Pennell  sect. Habroanthus 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  cyaneus Pennell  sect. Habroanthus
Territory Northwestern U.S.A.IdahoMontanaWyoming
dry, sandy grassland
Altitudemontane
Description glabrous, leaves petiolate, oblanceolate to narrowly elliptic, stem leaves lanceolate, often amplexicaule, inflorescence openly verticillate, flowers 25-35mm long
Size30-70cm
Colorbright blue
Bloomsummer
Ca
Typesubshrub
Cultivationdry, sunny site with a poor, sandy soil
alpine house, sandy soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
cuttings in late summer
BibliographyHitchcock, C.L.: Vascular Plants of the Pacific Northwest
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý