Rock Garden Plants
Penstemon  thompsoniae (A.Gray) Rydb.  sect. Caespitosi 
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FamilyPLANTAGINACEAE
Genus species var.Penstemon  thompsoniae (A.Gray) Rydb.  sect. Caespitosi
SynonymsPenstemon pumilus var. thompsoniae A.Gray (basionym)
 Penstemon thompsoniae var. desperatus Neese
Territory Southwestern U.S.A.ArizonaCaliforniaNevadaUtah
dry, rocky slopes
Altitude1800-2100m
Description leaves entire, oblanceolate to spathulate-oblong, 5-12mm, grey-white appressed hirsute, inflorescence racemose, leafy, flowers 13-18mm long, subtubular, staminodium golden barbate
Size1-5cm
Colorbluish violet
Bloomsummer
Ca+
Typesubshrub, carpet
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
BibliographyThe Jepson Manual ucjeps.berkeley.edu
USDA Plants Database plants.usda.gov
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Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý