Rock Garden Plants
Penstemon strictus Benth. sect. Glabri 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon strictus Benth. sect. Glabri
BibliographyProdr. [A.P.de Candolle] 10: 324 (1846)
Native Rangew. USA to New Mexico
Primary BiomeTemperate
Habitatstony grassland
Altitude1700-3500m
Descriptionglabrous, bluish, basal leaves oblong-spathulate, stem leaves linear-lanceolate, sessile, acute, inflorescence long and narrow, flowers 25-30mm long
Size20-80cm
Colordark violet
Bloomsummer
Ca+
Typeperennial
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
division in spring; cuttings in late summer
SynonymsPenstemon micranthus Torr.
Penstemon strictus ssp. angustus Pennell
Territory7 Northern America
     73 Northwestern U.S.A. (COL Colorado, WYO Wyoming)
     76 Southwestern U.S.A. (ARI Arizona, UTA Utah)
     77 South-Central U.S.A. (NWM New Mexico)
Version 10.0
(c) 1990-2025 RNDr. Pavel Slabý