Rock Garden Plants
Penstemon barrettiae A.Gray sect. Erianthera 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon barrettiae A.Gray sect. Erianthera
Habitatrocky slopes
Altitude70-300m
Descriptionglabrous, grey-green, leaves rigid, largest at base of new growth, to 8cm, inflorescence racemose, flowers 33-38mm long, outside glabrous, ca. 1cm wide
Size15-40cm
Colorpinkish purple, white
Bloomlate spring
Ca+
Typeshrub
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
     Northwestern U.S.A. (Oregon , Washington)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

PLANTAGINACEAE

Penstemon barrettiae A.Gray, Syn. Fl. N. Amer., ed. 2. 2(1): 440 (1886)

Oregon, Washington
73 ORE WAS

70-300m

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(c) 1990-2021 RNDr. Pavel Slabý