Rock Garden Plants
Penstemon  acuminatus Lindl.  sect. Anularius 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  acuminatus Lindl.  sect. Anularius
Territory Northwestern U.S.A.Southwestern U.S.A.CaliforniaIdahoOregonWashington
dry, sandy grassland
Description glabrous, leaves glaucous, oblanceolate, to 15cm long, inflorescence with weakly separated whorls, flowers 14-20mm long, staminodium yellow barbate or glabrous
Size15-50cm
Colorbright blue
Bloomsummer
Ca
Typetuft
Cultivationdry, sunny 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
BibliographyHitchcock, C.L.: Vascular Plants of the Pacific Northwest
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý