Rock Garden Plants
Penstemon  davidsonii var. menziesii (D.D.Keck) Cronquist  sect. Dasanthera 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  davidsonii var. menziesii (D.D.Keck) Cronquist  sect. Dasanthera
SynonymsPenstemon davidsonii ssp. menziesii D.D.Keck (basionym)
 Penstemon menziesii Hook. p.p.
Territory Western CanadaNorthwestern U.S.A.British ColumbiaOregonWashington
rocky slopes
Altitudesubalpine-alpine
Description branchlets ascendent, strigose, leaves shortly petiolate, obovate or broadly spathulate, dentate, coriaceous, thick, calyx viscid, lobes lanceolate, corolla 2-3cm long
Size10-15cm
Colorpurple
Bloomsummer
Ca
Typesubshrub, carpet
Cultivationrock crevices with favourable water regime, eastern slopes
alpine house, poor, drained soil, shading in summer
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