Rhododendron Hybrids / cultivars

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Rhododendron 'Unknown Warrior'

Hybridiser:van Nes C. B . & Sons. Boskoop, Netherlands, 1922 (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
?
Bloom time:early midseasonFlower:broadly campanulate
Type:elepidoteLeaves:elliptic
Hardiness:H4
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)

Registered
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on hirstum.info: 1
R. Unknown Warrior per country:
(could be a clue for heat/cold-tolerance)

United States : 1


Seed-parentPollen-parent
'Queen Wilhelmina'   Click to see more information X'Stanley Davies'   Click to see more information

R. griffithianum   Click to see more information

x? ?x?


Rhododendron 'Unknown Warrior' photos

 
Photo byKen Gibson
LocationPrivate garden, Tofino, Vancouver Island, Canada
Date07 April, 2004
See high-resolution picture




Send your own information or pictures


Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Bacher's Gold''Unknown Warrior' x 'Fabia Group'Bacher, J.G., 1955
'Crimson Star''Britannia' x 'Unknown Warrior'Hardgrove, D.L., 1951
'Florence''Creeping Jenny' x 'Unknown Warrior'Smith, E. E., 1967
'Helen Deehr'   Click to see more information


  Helen Deehr
'Unknown Warrior' x 'Noyo Brave'Moynier, W.A., 1981
'Jean Goujon Group''Barclayi Group' x 'Unknown Warrior'Adams-Acton, G.M, 1936
'Unknow Warrior x arboreum''Unknown Warrior' x R. arboreum ssp arboreumNo hybridiser registered
'Unknown Warrior x Ole Olson'   Click to see more information


  Unknown Warrior x Ole Olson
'Unknown Warrior' x 'Ole Olson'Watson, E.M. Mrs. (Elsie)
'Valarie Jane''Unknown Warrior' x 'Whitney Purple'Stipe, W.A., 1986
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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009