Rock Garden Plants
Helianthemum  canadense (L.) Michx.   
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FamilyCISTACEAE
Genus species var.Helianthemum  canadense (L.) Michx. 
SynonymsCistus canadense L. (basionym)
 Crocanthemum canadense (L.) Britton
 Helianthemum canadense var. sabulonum Fernald
Territory Eastern CanadaNorth-Central U.S.A.Northeastern U.S.A.Southeastern U.S.A.
dry, stony grassland
Description branchlets ascendent, leaves 1-3cm long, ca. 5mm wide, adaxially green, abaxially blue-grey, densely tomentose, flowers 2-3cm across, solitary
Size25-40cm
Coloryellow
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
BibliographyScoggan, H.J. (1978-1979) The Flora of Canada
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý