Rock Garden Plants
Penstemon saxosorum Pennell sect. Glabri 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon saxosorum Pennell sect. Glabri
Habitatrocky slopes
Altitude2400-3600m
Descriptionleaves entire, glabrous, linear-oblanceolate to oblanceolate, 3-14cm long, inflorescence elongate, flowers 18-24mm, glabrous, staminodium uncinate, apically barbate
Size10-80cm
Colordark blue
Bloomsummer
Ca
Typetuft
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
division in spring; cuttings in late summer
Territory Northern America
     Northwestern U.S.A. (Colorado , Wyoming)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

PLANTAGINACEAE

Penstemon saxosorum Pennell, Contr. U.S. Natl. Herb. 20: 349 (1920)

Colorado, sc. Wyoming
73 COL WYO

2400-3600m

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(c) 1990-2021 RNDr. Pavel Slabý