Rock Garden Plants
Penstemon militaris Greene sect. Penstemon 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon militaris Greene sect. Penstemon
BibliographyLeafl. Bot. Observ. Crit. 1: 166 (1906)
Native RangeIdaho
Primary BiomeTemperate
Habitatshady rocks and woods
Altitude1800-2500m
Descriptionglabrous, stem leaves petiolate, lanceolate to obovate, entire, acute or obtuse, thyrsus interrupted, cylindrical, flowers in whorls of 2-7, corolla 10-17mm
Size20-50cm
Colorblue-purple
Bloomsummer
Ca
Typeperennial
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
division in spring; cuttings in late summer
SynonymsPenstemon assurgens D.D.Keck
Penstemon attenuatus var. militaris (Greene) Cronquist
Penstemon attenuatus ssp. militaris (Greene) D.D.Keck
Territory7 Northern America
     73 Northwestern U.S.A. (IDA Idaho)
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(c) 1990-2025 RNDr. Pavel Slabý