Monday, February 13, 2012

Rosa Glauca



Rosa glauca (Red-leaved Rose or Redleaf Rose; syn. R. rubrifolia) is a species of rose native to the mountains of central and southern Europe, from Spanish Pyrenees east to Bulgaria, and north to Germany and Poland.

Rosa glauca is a deciduous arching shrub of sparsely bristled and thorny cinnamon-coloured arching canes 1.5–3 m tall. The most distinctive feature is its leaves, which are glaucous blue-green to coppery or purplish, and covered with a waxy bloom; they are 5–10 cm long and have 5–9 leaflets. The fragile, clear pink flowers are 2.5–4 cm diameter, and are produced in clusters of two to five. The fruit is a dark red globose hip 10–15 mm diameter.

This rose was not widely grown in gardens until the end of the 19th century, when its refined wildness and beauty out of the flowering season first began to be appreciated. The flower petals fall off easily in the spray from watering hoses, as well as from wind and rain. The species is naturalised in northern Europe north of its native range, particularly in Scandinavia.
A hybrid with Rosa rugosa has been given the cultivar name 'Carmenetta'.
Syns:
• Hecht-Rose
• Red Leaf Rose
• R. ferruginea
• Rosa ferruginea Villars synonym
• Rosa glauca Pourr.
• R. majalis rubrifolia
• Rosa majalis var.rubrifolia (Vill. ex Thory) Wallr.synonym
• R. romana
• Rosa romana hort.
• R. rubrifolia
• Rosa rubrifolia Vill. synonym
• Rosier a feuilles rougeâtres
• Rubrifolia
Pink blend, white center. Moderate fragrance. 5 petals. Small to medium, single (4-8 petals), cluster-flowered bloom form. Once-blooming spring or summer.
Arching, bushy, spreading, thornless (or almost), upright. Matte foliage. 5 to 7 leaflets.
Height of 150 to 350 cm. Width of 150 cm.
Zone 2 through 9. Vigorous. Produces decorative hips. Shade tolerant. Disease susceptibility: very disease resistant.
Tetraploid
R. glauca Pourr. (1788) sets red hips...
This should not be confused with Rosa rubifolia (Erich Unmuth, Vienna Austria). R. rubifolia (R. setigera) is so named because its leaves look like those of the blackberry (genus Rubus).

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