Rock Garden Plants
Penstemon  crandallii A.Nelson  sect. Caespitosi 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  crandallii A.Nelson  sect. Caespitosi
SynonymsPenstemon suffrutescens Rydb.
Territory Northwestern U.S.A.Southwestern U.S.A.South-Central U.S.A.ColoradoNew MexicoUtah
rocky slopes
Altitude1800-3000m
Description leaves narrowly oblanceolate to narrowly obovate, 10-28mm long, entire, usually glabrous, corolla 14-20mm long, tubular, with longer lower lip
Size5-25cm
Colorblue
Bloomsummer
Ca
Typesubshrub, carpet
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
cuttings in late summer
BibliographyCronquist, A. et al. (1972-2005) Intermountain Flora
USDA Plants Database plants.usda.gov
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Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý