Rhododendron Species


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R. irroratum ssp irroratum

SubgenusHymenanthes
SectionPontica
SubsectionIrrorataClick to see all Irrorata
In cultivation since: 1886

First described: 1887, (Franch.
Adrien Ren Franchet
(1834-1900)
France
Botanical-short: Franch.
)

Origin: Yunnan and S. Sichuan 2400-3700 meter

Corolla: campanulate
Leaves: lanceolate

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

Winter: evergreen
Bloomtime: early
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)


Predominant color: white

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
: 700 cm. (23ft.)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 29
R. irroratum ssp irroratum per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 15
Canada : 7
United States : 3
England : 2
Norway : 1
France : 1



Natural Hybrids
agastum =(irroratum ssp irroratum x arboreum ssp delavayi var delavayi)

Clones / selections
'Caarse', unknown, ,
'Polka Dot', 1957, Rothschild, Edmund Leopold de, Southampton, UK
'Spatter Paint', unknown, ,


Send questions, information or pictures

Rhododendron irroratum ssp irroratum
84.036
Photo byHank Helm
Date27 March, 2006
LocationRhododendron Species Botanical Garden, Federal Way, WA, USA
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Rhododendron irroratum ssp irroratum
77.082
Photo byHank Helm
Date27 March, 2006
LocationRhododendron Species Botanical Garden, Federal Way, WA, USA
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Rhododendron irroratum ssp irroratum
R11361
Photo byEverard Daniel
Date18 April, 2006
LocationWakehurst Place Garden, Sussex, UK
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Rhododendron irroratum ssp irroratum
Photo byEverard Daniel
Date
LocationRoyal Windsor Great Park, Valley
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Rhododendron irroratum ssp irroratum
R11260
Photo byEverard Daniel
Date18 February, 2004
LocationRoyal Windsor Great Park, Valley
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Rhododendron irroratum ssp irroratum
Photo byGarth Wedemire
Date12 March, 2005
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
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Rhododendron irroratum ssp irroratum
Photo byGarth Wedemire
Date12 March, 2005
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
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Rhododendron irroratum ssp irroratum
yellow form
Photo byHank Helm
Date30 March, 2008
LocationChimacum Woods Garden, Washington, USA
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Rhododendron irroratum ssp irroratum
Photo byKen Gibson
Date11 March, 2004
LocationPrivate garden, Tofino, Vancouver Island, Canada
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Rhododendron irroratum ssp irroratum
Photo byGarth Wedemire
Date07 April, 2007
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version
Rhododendron irroratum ssp irroratum
looks like 'Polka Dot'
Photo byGarth Wedemire
Date25 March, 2006
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
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Rhododendron irroratum ssp irroratum
Photo byKen Gibson
Date12 March, 2004
LocationPrivate garden, Tofino, Vancouver Island, Canada
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Rhododendron irroratum ssp irroratum
Photo byKen Gibson
Date12 March, 2004
LocationPrivate garden, Tofino, Vancouver Island, Canada
See high-resolution version
Rhododendron irroratum ssp irroratum
Photo byGarth Wedemire
Date25 March, 2006
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
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Rhododendron irroratum ssp irroratum
is this not ssp pogonostylum?
Photo byCoen Zonneveld
Date24 March, 2009
LocationPrivate garden, Diepenveen, Netherlands
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Rhododendron irroratum ssp irroratum
Photo byCoen Zonneveld
Date24 March, 2009
LocationPrivate garden, Diepenveen, Netherlands
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date
LocationHank Helm Garden, Bainbridge Island, WA, USA
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Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date13 July, 2012
LocationHank Helm Garden, Bainbridge Island, WA, USA
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Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date13 July, 2012
LocationHank Helm Garden, Bainbridge Island, WA, USA
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Rhododendron irroratum ssp irroratum
Photo byHerman Van Ree
Date26 October, 2009
LocationArboretum Belmonte, Wageningen, Netherlands

Rhododendron irroratum ssp irroratum
Photo byHerman Van Ree
Date26 October, 2009
LocationArboretum Belmonte, Wageningen, Netherlands



irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo bySusan Lightburn
Date24 March, 2010
Locationprivate garden Nanoose Bay, Vancouver Island, Canada
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irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date
LocationHank Helm Garden, Bainbridge Island, WA, USA
See high-resolution version
irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date15 March, 2008
LocationHank Helm Garden, Bainbridge Island, WA, USA
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irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byTheo Damen
Date08 April, 2007
LocationArboretum Belmonte, Wageningen, Netherlands
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irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byEverard Daniel
Date14 April, 2004
LocationLeonardslee/Loder Plants, Sussex, UK
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irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byTheo Damen
Date08 April, 2007
LocationArboretum Belmonte, Wageningen, Netherlands
irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date10 March, 2013
LocationHank Helm Garden, Bainbridge Island, WA, USA
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irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date
LocationHank Helm Garden, Bainbridge Island, WA, USA
See high-resolution version
irroratum ssp irroratum 'Polka Dot'
Rhododendron irroratum ssp irroratum
Photo byHank Helm
Date08 September, 2013
LocationHank Helm Garden, Bainbridge Island, WA, USA
See high-resolution version

Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. irroratum ssp irroratum is directly involved:     show indirect inv.
'Aztec Group' (photoClick to see more information


Aztec Group
), 1926, Rothschild, L. de, Founder of Exbury Gardens, UK
R. arboreum ssp arboreum x R. irroratum ssp irroratum
'Campirr Group', 1919, Magor, E.J.P., Lamellan, St. Tudy, Cornwall, EnglandR. campylocarpum ssp campylocarpum x R. irroratum ssp irroratum
'Carex' (photoClick to see more information


Carex
), 1932, Rothschild, L. de, Founder of Exbury Gardens, UK
R. irroratum ssp irroratum x R. oreodoxa var fargesii
'Carex White' (photoClick to see more information


Carex White
), 1958, Rothschild, L. de, Founder of Exbury Gardens, UK
R. irroratum ssp irroratum x R. oreodoxa var fargesii
'Carol Grier', 1988, Bovee Robert M., Oswego, Oregon, USAR. irroratum ssp irroratum x ?
'Early Stir Group', 1934, Digby, Lord, , R. strigillosum x R. irroratum ssp irroratum
'Golden Promise', 1991, O'Rourke, H., Burnie, Tasmania, Australia'Golden Wit' x R. irroratum ssp irroratum
'Hong Yun' (photoClick to see more information


Hong Yun
), 1985, Zhang, Chang Qin, Kunming, China
R. irroratum ssp irroratum x R. arboreum ssp delavayi
'Laura Matthews', 1980, Sullivan, N., Burnie, Tasmania, AustraliaR. irroratum ssp irroratum x 'Coronation Day'
'Leonardslee White Glory', 1938, Loder, Sir Edmund, Horsham, Sussex, EnglandR. irroratum ssp irroratum x 'Loderi Group'
'Pamela Reynolds', 1987, Sullivan, N., Burnie, Tasmania, AustraliaR. irroratum ssp irroratum x R. grande
'Pink Glory', 1940, Lady Loder, , R. irroratum ssp irroratum x 'Loderi Group'
'Prince Abkhazi' (photoClick to see more information


Prince Abkhazi
), 1970, Vaartnou, H., ,
R. irroratum ssp irroratum x ?
'Princess Abkhazi' (photoClick to see more information


Princess Abkhazi
), 1970, Vaartnou, H., ,
R. irroratum ssp irroratum x ?
'White Glory' (photoClick to see more information


White Glory
), 1937, Lady Loder, ,
R. irroratum ssp irroratum x 'Loderi Group'
Hybrids where clones/selections of R. irroratum ssp irroratum are involved (alphabetical per clone)
'Cloudburst' (photoClick to see more information


Cloudburst
), 1992, Wallace, Don S., McKinleyville, California, USA
'Wizard' x R. irroratum ssp irroratum 'Polka Dot'
'Hille' (photoClick to see more information


Hille
), 1984, Wieting, J., Baumschulen, Gisselhorst/Westerstede, Germany
'Graf Lennart' x R. irroratum ssp irroratum 'Polka Dot'
'Lavender Swiss' (photoClick to see more information


Lavender Swiss
), 1970, Valder, P.G., ,
'Purple Splendour' x R. irroratum ssp irroratum 'Polka Dot'
'Scheherezade', 1988, Rothschild, Edmund Leopold de, Southampton, UKR. irroratum ssp irroratum 'Polka Dot' x R. calophytum var calophytum
'Ink Spot' (photoClick to see more information


Ink Spot
), unknown, ,
R. irroratum ssp irroratum 'Spatter Paint' x 'Purple Splendour'

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Rhododendron Species   Hirsutum.info     Project started 03 June 2009