Rock Garden Plants
Onosma polioxantha Rech.f.  
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FamilyBORAGINACEAE
Genus speciesOnosma polioxantha Rech.f. 
BibliographyAnn. Naturhist. Mus. Wien 55: 7 (1947)
Native Rangec. & se. Turkey
Primary BiomeTemperate
Habitatsteppes
Altitude300-2200m
Descriptionleaves lanceolate to oblong lanceolate, acute, adaxially yellow-green, abaxially greyish, setose, strigose, flowers 2-5 in lax, terminal cymes, corolla cylindrical, 15mm long
Size10-25cm
Colorbright yellow
Bloomlate spring, summer
Ca+
Typeperennial
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, germ. 1-3 months, 13-18°C
cuttings in late summer
Territory3 Asia-Temperate
     34 Western Asia (TUR Turkey)
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