Rhododendron Hybrids / cultivars

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Rhododendron 'Adriaan Koster'

Hybridiser:Koster M. & Sons. Boskoop, Netherlands, 1920 (see more plants of this hybridizer)
Status:IRRC registered.
Additional parentage info:(campylocarpum hybrid) x ()
Height
Height
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
200 cm. (7ft.)
Bloom time:midseasonFlower:campanulate
Type:Leaves:unknown
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
? X'Mrs Lindsay Smith'   Click to see more information

'George Hardy'   Click to see more information

x'Duchess of Edinburgh'   Click to see more information
R. griffithianum   Click to see more information

xR. catawbiense   Click to see more information



Rhododendron 'Adriaan Koster' photos

 
Photo bySteve Henning
LocationBruns Nursery, Gristede, Germany
Date22 May, 2010
See high-resolution picture




Send your own information or pictures


Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Adriaan Koster x williamsianum''Adriaan Koster' x R. williamsianumNo hybridiser registered
'Eddystone''Adriaan Koster' x R. wardii Litiense GroupHanger, F.E.W., 1965
'Elfenbein'   Click to see more information


  Elfenbein
'Adriaan Koster' x R. williamsianumHobbie, Dietrich G., 1947
'Full Moon'   Click to see more information


  Full Moon
'Hawk Group' x 'Adriaan Koster'Henny, John, 1955
'Gartendirektor Rieger'   Click to see more information


  Gartendirektor Rieger
'Adriaan Koster' x R. williamsianumHobbie, Dietrich G., 1947
'Goldika''Adriaan Koster' x R. wardii var wardiiHobbie, Dietrich G., 1955
'Moonshine'   Click to see more information


  Moonshine
'Adriaan Koster' x 'Gold Tee'Hanger, F.E.W., 1947
'Moonshine Glow''Adriaan Koster' x R. wardii Litiense GroupHanger, F.E.W., 1947
'Moonshine Group''Adriaan Koster' x R. wardii Litiense GroupHanger, F.E.W., 1947
'Moonshine Supreme''Adriaan Koster' x R. wardii Litiense GroupHanger, F.E.W., 1947
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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009