Rhododendron Hybrids / cultivars

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Rhododendron 'Arthur Osborn'

Hybridiser:Kew. Royal Botanical Gardens, Surrey, England, 1929 (see more plants of this hybridizer)
Status:IRRC registered.
Height
Height
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
100 cm. (3ft.)
Bloom time:late midseasonFlower:funnel-shaped
Type:elepidoteLeaves:oblong-lanceolate
Hardiness:
H0 = 0 C (32 F)
H1 = -7 C (20 F)
H2 = -12 C (10 F)
H3 = -15 C (5 F)
H4 = -18 C (0 F)
H5 = -24 C (-10 F)


Seed-parentPollen-parent
R. sanguineum ssp didymum   Click to see more information

XR. griersonianum   Click to see more information



Rhododendron 'Arthur Osborn' photos

 
Photo byHank Helm
LocationHank Helm Garden, Bainbridge Island, WA, USA
Date21 June, 2006
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Photo byEverard Daniel
LocationLeonardslee/Loder Plants, Sussex, UK
DateJune, 2003
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Photo byHank Helm
LocationPrivate garden, Bainbridge Island, WA, USA
Date05 June, 2014
See high-resolution picture
 
Photo byHank Helm
LocationHank Helm Garden, Bainbridge Island, WA, USA
Date05 July, 2008
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Photo byHank Helm
LocationHank Helm Garden, Bainbridge Island, WA, USA
Date22 June, 2012
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Photo byHank Helm
LocationHank Helm Garden, Bainbridge Island, WA, USA
Date
See high-resolution picture
 
Photo byHank Helm
LocationPrivate garden, Bainbridge Island, WA, USA
Date05 June, 2014
See high-resolution picture




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Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Aglare''Arthur Osborn' x 'Rapture Group'Harrison, E.G.W.W., 1947
'Agleam''Arthur Osborn' x 'Isabella Group'Harrison, E.G.W.W., 1954
'Aglow'R. decorum ssp diaprepes x 'Arthur Osborn'Harrison, E.G.W.W., 1954
'Cordelia Group''Arthur Osborn' x 'Loderi King George'Aberconway, Lord, 1934
'Fabos Group''Arthur Osborn' x 'Fabia Group'Reuthe, G. Ltd, 1952
'Salus Group''Arthur Osborn' x 'Coreta Group'Aberconway, Lord, 1929
'Symphony Group''Arthur Osborn' x 'F.C. Puddle Group'Aberconway, Lord, 1931
'Toreador''Arthur Osborn' x R. griersonianumAberconway, Lord, 1933
'Toreador Group''Arthur Osborn' x R. griersonianumAberconway, Lord, 1933
'Zenobia Group''Eros Group' x 'Arthur Osborn'Aberconway, Lord, 1930
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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009