Rock Garden Plants
Penstemon  caesius A.Gray  sect. Saccanthera 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  caesius A.Gray  sect. Saccanthera
Territory Southwestern U.S.A.California
dry, rocky slopes
Altitude2300-3800m
Description grey-green, basal leaves orbiculate, 1-2cm long, petiolate, upwards reduced, inflorescence lax, sparse, flowers 17-23mm long, inside glabrous
Size15-40cm
Colorbluish purple
Bloomsummer
Ca
Typesubshrub
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
BibliographyThe Jepson Manual ucjeps.berkeley.edu
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý