Rock Garden Plants
Penstemon  barrettiae A.Gray  sect. Dasanthera 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  barrettiae A.Gray  sect. Dasanthera
Territory Northwestern U.S.A.OregonWashington
rocky slopes
Altitudemontane
Description glabrous, grey-green, leaves rigid, largest at base of new growth, to 8cm, inflorescence racemose, flowers 33-38mm long, outside glabrous, ca. 1cm wide
Size20-40cm
Colorpinkish purple, white
Bloomlate spring
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
BibliographyHitchcock, C.L.: Vascular Plants of the Pacific Northwest
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý