Rock Garden Plants
Penstemon osterhoutii Pennell sect. Coerulei 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon osterhoutii Pennell sect. Coerulei
BibliographyContr. U.S. Natl. Herb. 20: 358 (1920)
Native RangeColorado
Primary BiomeTemperate
Habitatsandy grassland
Altitude1600-2700m
Descriptionleaves glabrous, blue-grey, sharply mucronate, ovate, lower leaves to 12cm long, upwards smaller, inflorescence racemose, flowers with long tube, staminodium uncinate
Size20-75cm
Colorlavender-blue
Bloomsummer
Ca
Typeperennial
Cultivationsunny site with a poor, sandy soil
alpine house, sandy soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
division in spring; cuttings in late summer
Territory7 Northern America
     73 Northwestern U.S.A. (COL Colorado)
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(c) 1990-2025 RNDr. Pavel Slabý