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|image_caption=Hibiscus syriacus 'Oiseau Bleu'
|image_caption=Hibiscus syriacus 'Oiseau Bleu'
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Hibiscus syriacus, Linn. (Althaea frutex, Hort.). Shrubby Althea. Rose Of Sharon. Figs. 1828, 1835. Shrub, 6-12 ft. high, sometimes almost tree-like, much branched, nearly or quite glabrous: lvs. rather small, short-petioled, strongly 3-ribbed, triangular- or rhombic-ovate, lower ones mostly 3-lobed and with many rounded teeth or notches: bracteoles linear, 6 or 7: fls. solitary in the axils on the young wood (late in the season), short-peduncled, somewhat bell-shaped, 2-3 in. long, rose or purple, usually darker at the base; sepala ovate-lanceolate, exceeding the bracteoles: pod short, splitting into 5 valves. Asia. B.M. 83. R.H. 1845:133 (var. speciosus, with double fls.). Gn. 75, p. 604. J.H. 111.55:473. G.W. 13, p. 65. G.Z. 24:97. J.F. 4: pi. 370. G.7:149; 11:167. F.E. 25:459; 32:127.—One of the commonest of ornamental shrubs, and hardy in Ontario; commonly known as althea. It is immensely variable in character of fls., the colors ranging from blue-purple to violet-red, flesh-color and white; also full double forms. There are forms with variegated lvs. Colored plates of some of the double-fld. forms will be found in Gn. 52:504. The species thrives in any good soil. Prop, by seeds, by cuttings of ripened wood taken in the fall, and named varieties by grafting on the common seedling stock. Nativity uncertain, out probably not Syrian, as Linnaeus supposed: probably native in China. To this species belongs the trade name H. leopoldii. There are many horticultural forms of this interesting late summer-flowering shrub. Var. meblianii, Hort., is a variegated-lvd. form of somewhat dwarf like). and single fls. 3-4 in. across, lavender, and purple-blotched. Other trade names that belong with H. syriacus are: amplissimus, double, purple-pink with carmine center; anemonaeflorus; atrarubens; bicolor, semi- double, white with dark center; camellisaeflorus; caelestis; elegantissimus; leooldii; pspmiflbrus; purpureus; ranuneulaeflorus; ruber; speciosus; totus albus; violaceus.
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A [[deciduous]] [[shrub]] growing to 3m by 2m at a medium rate.
A [[deciduous]] [[shrub]] growing to 3m by 2m at a medium rate.