Rock Garden Plants
Penstemon  pruinosus Lindl.  sect. Humiles 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  pruinosus Lindl.  sect. Humiles
Territory Western CanadaNorthwestern U.S.A.British ColumbiaWashington
rocky slopes
Altitudemontane
Description leaves sharply serrate, to 10cm long, narrowly to broadly elliptic, ovate, stem leaves sessile, more narrow, inflorescence verticillate, flowers 11-16mm long
Size10-40cm
Colordark blue
Bloomsummer
Ca
Typesubshrub
Cultivationsunny, dry, rock crevices, protection against winter wet
alpine house, poor, drained 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
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Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý