Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

Rhododendron 'Unknown Warrior'

Hybridiser:van Nes C. B . & Sons. Boskoop, Netherlands, 1922 (see more plants of this hybridizer)
Status:IRRC registered.
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
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)

In 'Your Garden' you can administrate
your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 1
R. Unknown Warrior per country:
(could be a clue for heat/cold-tolerance)

United States : 1

'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
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009