Rock Garden Plants
Penstemon  caespitosus A.Gray  sect. Caespitosi 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  caespitosus A.Gray  sect. Caespitosi
Territory Northwestern U.S.A.Southwestern U.S.A.ArizonaColoradoUtahWyoming
rocky slopes
Altitude1500-2600m
Description grey strigose, leaves 5-15mm, spathulate or oblanceolate, 5-15mm, flowers few in cluster, calyx strigose, corolla 15-20mm, tubular-infundibuliform, staminodium barbate
Size5-10cm
Colorblue, bluish violet
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
green cuttings in late summer
BibliographyCronquist, A. et al. (1972-2005) Intermountain Flora
USDA Plants Database plants.usda.gov
Picture Picture
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý