Rock Garden Plants
Hydrophyllum capitatum Douglas ex Benth.  
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FamilyBORAGINACEAE
Genus speciesHydrophyllum capitatum Douglas ex Benth. 
BibliographyTrans. Linn. Soc. London 17: 273 (1835)
Native Rangew. Canada to wc. USA
Primary BiomeTemperate
Habitatthickets and woods
Descriptionsparsely hirsute, leaves few, large, long petiolate, palmatipinnate, segments 7-11, flowers in cluster amongst leaves, corolla 5-9mm long
Size10-40cm
Colorblue, white
Bloomspring, summer
Ca
Typeperennial
Cultivationcold, shady site with a humous, moist soil
alpine house, moist, humous soil, shade
Propagationseed in spring, barely covered, germ. 1-3 months, 10-16°C
division in spring and early fall; cuttings in late summer
SynonymsHydrophyllum capitatum var. pumilum Geyer ex Hook.
Territory7 Northern America
     71 Western Canada (ABT Alberta, BRC British Columbia)
     73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming)
     76 Southwestern U.S.A. (UTA Utah)
Version 10.0
(c) 1990-2025 RNDr. Pavel Slabý