Rhododendron Hybrids / cultivars

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Rhododendron 'Ilam Alarm'

Hybridiser:Stead, E.F., 1947 (see more plants of this hybridizer)
Status:IRRC registered.
Additional parentage info:() x (pink flowered)
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)

R. arboreum ssp zeylanicum   Click to see more information

XR. griffithianum   Click to see more information

Rhododendron 'Ilam Alarm' photos

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Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Edgar Stead''Ilam Alarm' x 'Shilsonii Group'Stead, E.F., 1958
'Kaka''Ilam Alarm' x R. griersonianumStead, E.F., 1950
'Scarlet King Group''Ilam Alarm' x R. griersonianumStead, E.F., 1947
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009