Rock Garden Plants
Penstemon  wilcoxii Rydb.  sect. Humiles 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  wilcoxii Rydb.  sect. Humiles
SynonymsPenstemon ovatus var. pinetorum Piper
Territory Northwestern U.S.A.IdahoMontanaOregonWashington
grassland and scree
Altitudelowland-subalpine
Description stems glabrous, leaves glabrous, sharply denticulate, the lower petiolate, lanceolate, the upper lanceolate and subamplexicaule, flowers in whorls, calyx lobes lanceolate
Size30-100cm
Colorblue
Bloomsummer
Ca
Typesubshrub
Cultivationgravelly, humous, moist, sunny site
alpine house, moist, humous, gravelly 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