Rhododendron Hybrids / cultivars

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cultivar group 'Blue Diamond Group'

Hybridiser:Crosfield, J. J.. Embley Park, Romsey, Hampshire, UK, 1935 (see more plants of this hybridizer)
Status:IRRC registered.
Synonyms:'Island Violet'
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
Bloom time:unknownFlower:unknown
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)

'Intrifast Group'   Click to see more information XR. augustinii ssp augustinii   Click to see more information

R. intricatum   Click to see more informationxR. fastigiatum   Click to see more information

cultivar group 'Blue Diamond Group' photos

Photo byBill & Cheryl Gray
LocationCisco Heights National Forest & Rhody Ranch, WA, USA
Date08 May, 2011
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Photo byBill McMillan
LocationGlendale Gardens, Victoria, BC, Canada
Date12 April, 2006
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Photo byBill & Cheryl Gray
LocationHammmonds Acres of Rhodies, Arlington WA. USA.
Date19 April, 2010
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Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Blaney's Blue'   Click to see more information

  Blaney's Blue
R. augustinii ssp augustinii 'Tower Court' x 'Blue Diamond Group'Blaney, L.T., 1974
'Bob's Blue'   Click to see more information

  Bob's Blue
'Ilam Violet' x 'Blue Diamond Group'Rhodes, R.C., 1977
'Dorset Blue''Electra Group' x 'Blue Diamond Group'May, J., 1969
'Gletschernacht'   Click to see more information

R. russatum x 'Blue Diamond Group'Hachmann, Hans, 1961
'Hokuto-sei''Crater Lake' x 'Blue Diamond Group'Ono, K., 1990
'Rustic Maid Group'R. russatum x 'Blue Diamond Group'Ingram, C.
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009