Rhododendron Species


Gallery: ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

R. ambiguum

SubgenusRhododendron
SectionRhododendron
SubsectionTrifloraClick to see all Triflora
Synonyms
R. chengshienianum
R. chiengshienianum   (W.P. Fang
Wen Pei Fang
(0-0)
Botanical-short: W.P. Fang
)
In cultivation since: 1904

First described: 1911, (Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
)

Origin: W. Sichuan 2600-4500 meter

Corolla: unknown
Leaves: unknown

Habit: terrestrial
epiphytic = living on dead organic material (decaying trees f.i)
terrestrial = in soil (like in your garden)

Winter: evergreen
Bloomtime: midseason
Hardiness: H5
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)


Predominant color: yellow

Height
Height
The figures listed here are the observed size in the natural environment.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
: 400 cm. (13ft.)

Registered
In 'Your Garden' you can administrate
your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 46
R. ambiguum per country:
(could be a clue for heat/cold-tolerance)

Finland : 14
Denmark : 11
Netherlands : 7
Canada : 4
France : 4
United States : 2
Norway : 2
England : 1
Sweden : 1



Clones / selections
'Jane Banks', 1976, Banks, W.L. & R.A., ,


Send questions, information or pictures

Rhododendron ambiguum
Photo byRinus Manders
Date03 May, 2014
LocationPrivate garden Leon Teeven, Eersel, Netherlands
See high-resolution version
Rhododendron ambiguum
Photo byRinus Manders
Date03 May, 2014
LocationPrivate garden Leon Teeven, Eersel, Netherlands
See high-resolution version
Rhododendron ambiguum
Photo byGarth Wedemire
Date09 April, 2010
LocationUniversity of Britsh Columbia, Vancouver, Canada
See high-resolution version
Rhododendron ambiguum
Photo byCoen Zonneveld
Date11 May, 2008
LocationPrivate garden, Diepenveen, Netherlands
See high-resolution version
Rhododendron ambiguum
Photo byGarth Wedemire
Date13 May, 2006
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version
Rhododendron ambiguum
Photo byGarth Wedemire
Date27 April, 2006
LocationMike Bale’s Garden: Lu Zhu, Agassiz, BC, Canada
See high-resolution version
Rhododendron ambiguum
Photo byCoen Zonneveld
Date11 May, 2008
LocationPrivate garden, Diepenveen, Netherlands
Rhododendron ambiguum
Photo byGarth Wedemire
Date27 April, 2006
LocationMike Bale’s Garden: Lu Zhu, Agassiz, BC, Canada
See high-resolution version
Rhododendron ambiguum
Photo byHerman Van Ree
Date05 May, 2010
LocationRoyal Windsor Great Park, Valley, Berkshire, UK
See high-resolution version

Rhododendron ambiguum
R. ambiguum with bee
Photo byHerman Van Ree
Date05 May, 2010
LocationRoyal Windsor Great Park, Valley, Berkshire, UK
See high-resolution version
Rhododendron ambiguum
Photo byCoen Zonneveld
Date01 May, 2009
LocationPrivate garden, Diepenveen, Netherlands
Rhododendron ambiguum
Photo from R. chengshienianum
Photo byHerman Van Ree
Date20 May, 2011
LocationPinetum Blijdenstein te Hilversum, Netherlands
See high-resolution version




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. ambiguum is directly involved:     show indirect inv.
'Affection', 1942, Sunningdale Nursery, , R. ambiguum x R. cinnabarinum ssp cinnabarinum Blandfordiiflorum
'ambiguum x cinnabarinum Concatenans Group' (photoClick to see more information


ambiguum x cinnabarinum Concatenans Group
), 1970, Hobbie, Dietrich G., Westerstede/Linswege, Germany
R. ambiguum x R. cinnabarinum ssp xanthocodon Concatenans Group
'Amkeys Group', 1926, Magor, E.J.P., Lamellan, St. Tudy, Cornwall, EnglandR. ambiguum x R. keysii
'Biskra' (photoClick to see more information


Biskra
), 1934, Rothschild, L. de, Founder of Exbury Gardens, UK
R. cinnabarinum ssp cinnabarinum Roylei Group x R. ambiguum
'Charmant' (photoClick to see more information


Charmant
), 1990, Reich, W., ,
R. ambiguum x 'Barnaby Sunset'
'Eroica' (photoClick to see more information


Eroica
), unknown, ,
? x R. ambiguum
'Hachmann's Eileen', 1988, Hachmann, Hans, Barmstedt in Holstein, GermanyR. ambiguum x R. cinnabarinum ssp xanthocodon Concatenans Group
'Hachmann's Medley' (photoClick to see more information


Hachmann's Medley
), 1960, Hobbie, Dietrich G., Westerstede/Linswege, Germany
R. ambiguum x R. concinnum
'Lady Lawrence', 1942, Thacker, T.C., , 'Lady Rosebery Group' x R. ambiguum
'Mondschein' (photoClick to see more information


Mondschein
), 1969, Boskoop, Research Center fo Arboreus Crops, Netherlands
R. ambiguum x R. cinnabarinum ssp xanthocodon Concatenans Group
'Mosaique', 1945, Rothschild, L. de, Founder of Exbury Gardens, UKR. ambiguum x 'Cinnkeys Group'


Indirect involvement of R. ambiguum in cultivars: (cultivar = direct child/cultivar of ambiguum)
'What a Dane' (photoClick to see more information


What a Dane
), 1983, Birck, Jens, Kastrup, Denmark
'ambiguum x cinnabarinum Concatenans Group' x 'Nepal'
'Biskra x cinnabarinum ssp xanthocodon' (photoClick to see more information


Biskra x cinnabarinum ssp xanthocodon
), Birck, Jens, Kastrup, Denmark
'Biskra' x R. cinnabarinum ssp xanthocodon
'Shanti' (photoClick to see more information


Shanti
), 1990, Hübbers, K-H., Kranenburg, Germany
'Biskra' x 'Conroy'
'Sharda' (photoClick to see more information


Sharda
), 1990, Hübbers, K-H., Kranenburg, Germany
'Biskra' x 'Conroy'
_____________________________________________________________________________________________________________________________________
Rhododendron Species   Hirsutum.info     Project started 03 June 2009