Rock Garden Plants
Penstemon caesius A.Gray sect. Saccanthera 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon caesius A.Gray sect. Saccanthera
Habitatdry, rocky slopes
Altitude2000-3100m
Descriptiongrey-green, basal leaves orbiculate, 1-2cm long, petiolate, upwards reduced, inflorescence lax, sparse, flowers 17-23mm long, inside glabrous
Size15-30cm
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
Territory Northern America
     Southwestern U.S.A. (California)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

PLANTAGINACEAE

Penstemon caesius A.Gray, Proc. Amer. Acad. Arts. 19: 92 (1883)

California
76 CAL

2000-3100m

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(c) 1990-2021 RNDr. Pavel Slabý