Rock Garden Plants
Penstemon  longiflorus (Pennell) S.L.Clark  sect. Habroanthus 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  longiflorus (Pennell) S.L.Clark  sect. Habroanthus
SynonymsPenstemon cyananthus ssp. longiflorus Pennell (basionym)
 Penstemon cyananthus var. longiflorus (Pennell) Neese
Territory Southwestern U.S.A.Utah
dry, stony grassland
Altitude300-2200m
Description inflorescence glabrous, basally pubescent, lower leaves oblong-lanceolate, to 8cm, upper leaves wider, 7cm long, inflorescence secund, with long internodes, flowers 3cm
Size30-60cm
Colorbluish violet
Bloomsummer
Ca
Typesubshrub
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
cuttings in late summer
BibliographyCronquist, A. et al. (1972-2005) Intermountain Flora
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý