Rock Garden Plants
Penstemon saxosorum Pennell sect. Glabri 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon saxosorum Pennell sect. Glabri
BibliographyContr. U.S. Natl. Herb. 20: 349 (1920)
Native RangeColorado to sc. Wyoming
Primary BiomeTemperate
Habitatrocky slopes
Altitude2400-3600m
Descriptionleaves entire, glabrous, linear-oblanceolate to oblanceolate, 3-14cm long, inflorescence elongate, flowers 18-24mm, glabrous, staminodium uncinate, apically barbate
Size10-80cm
Colordark blue
Bloomsummer
Ca
Typeperennial
Cultivationsunny rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
division in spring; cuttings in late summer
Territory7 Northern America
     73 Northwestern U.S.A. (COL Colorado, WYO Wyoming)
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(c) 1990-2025 RNDr. Pavel Slabý