Rock Garden Plants
Onosma canescens C.Presl  
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FamilyBORAGINACEAE
Genus speciesOnosma canescens C.Presl 
BibliographyFl. Sicul.: xxxiv (1826)
Native RangeSicilia
Primary BiomeSubtropical
Habitatrocks
Descriptionbranchlets erect, hirsute, leaves alternate, linear, grey-green, entire, adaxially densely hirsute, flowers in cincinni, corolla tubular, 20-25mm long
Size10-30cm
Colorpale yellow
Bloomspring, early summer
Ca
Typesubshrub
Cultivationsunny, dry, rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed in spring, germ. 1-3 months, 13-18°C
cuttings in late summer
SynonymsOnosma echioides ssp. canescens (C.Presl) Peruzzi & N.G.Passal.
Territory1 Europe
     13 Southeastern Europe (SIC Sicilia)
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(c) 1990-2025 RNDr. Pavel Slabý