Rock Garden Plants
Penstemon  saxosorum Pennell  sect. Habroanthus 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  saxosorum Pennell  sect. Habroanthus
Territory Northwestern U.S.A.ColoradoWyoming
rocky slopes
Altitude2800-3300m
Description leaves 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
Typetuft
Cultivationsunny, dry, 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
BibliographyDorn, R.D. (1992) Manual of the Vascular Plants of Wyoming
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý