Rock Garden Plants
Penstemon  virens Rydb.  sect. Humiles 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  virens Rydb.  sect. Humiles
Territory Northwestern U.S.A.ColoradoWyoming
grassland and thickets
Altitude1800-3000m
Description leaves entire or denticulate, bright shiny green, glabrous, oblanceolate to elliptic, 3-10cm long, inflorescence dense, verticillate, flowers 10-15mm long
Size10-30cm
Colorbluish violet, blue
Bloomsummer
Ca-
Typesubshrub
Cultivationmesic, slightly humous, semi-shady site
alpine house, moist, rich, drained soil, semi-shade
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
cuttings in late summer
BibliographyDorn, R.D. (1992) Manual of the Vascular Plants of Wyoming
USDA Plants Database plants.usda.gov
Picture Picture Picture
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý