Rock Garden Plants
Penstemon watsonii A.Gray sect. Penstemon 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon watsonii A.Gray sect. Penstemon
BibliographySyn. Fl. N. Amer. 2(1): 267 (1878)
Native Rangew. USA
Primary BiomeTemperate
Habitatrocky slopes
Altitude1700-3200m
Descriptionbasal leaves absent, stem leaves 3-7cm long, entire, basal stem leaves oblanceolate, the upper lanceolate, inflorescence of 2-6 relatively lax whorls, flowers 12-16mm
Size25-60cm
Colorblue, violet
Bloomsummer
Ca
Typeperennial
Cultivationsunny 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
SynonymsPenstemon phlogifolius Greene
Penstemon watsonii ssp. typicus D.D.Keck
Territory7 Northern America
     73 Northwestern U.S.A. (COL Colorado, IDA Idaho, WYO Wyoming)
     76 Southwestern U.S.A. (ARI Arizona, NEV Nevada, UTA Utah)
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(c) 1990-2025 RNDr. Pavel Slabý