Rhododendron Species


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R. aureum var aureum

SubgenusHymenanthes
SectionPontica
SubsectionPonticaClick to see all Pontica
Synonyms
R. aureum
R. chrysanthum   (Pall
Peter Simon Pallas
(1741-1811)
Berlin, Germany
Botanical-short: Pall
)
R. flavum
R. officinale   (Salisb.
Richard Anthony Salisbury
(1761-1829)
Leeds, England
Botanical-short: Salisb.
)
In cultivation since: 1776

First described: 1775, (Georgi
Johann Gottlieb Georgi
(1729-1802)
Germany
Botanical-short: Georgi
)

Origin: Central and East Siberia, N. China to N. Japan 1500-2700 meter

Corolla: openly campanulate
Leaves: elliptic to ovate

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

Winter: evergreen
Bloomtime: early
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
: 60 cm. (2ft.)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 55
R. aureum var aureum per country:
(could be a clue for heat/cold-tolerance)

Finland : 30
Netherlands : 9
Denmark : 7
Canada : 4
United States : 2
Estonia : 1
Japan : 1
Sweden : 1



Natural Hybrids
kurokimense =(aureum var aureum x degronianum ssp degronianum)
nikomontanum =(aureum var aureum x brachycarpum ssp brachycarpum)


Send questions, information or pictures

Rhododendron aureum var aureum
From seeds from Doi , Japan
Photo byJens Birck
Date22 April, 2010
Locationprivate garden Kastrup, Denmark
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Rhododendron aureum var aureum
Photo byJens Birck
Date25 April, 2006
LocationKastrup, Denmark
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Rhododendron aureum var aureum
Photo byJens Birck
Date09 March, 2002
LocationKastrup, Denmark
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Rhododendron aureum var aureum
Photo byHerman Van Ree
Date25 May, 2012
Locationown garden, Nunspeet Netherlands
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Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. aureum var aureum is directly involved:     show indirect inv.
'aureum var aureum x brachycarpum 'Montanum'', unknown, , R. aureum var aureum x R. brachycarpum ssp brachycarpum 'Montanum'
'aureum x maximum', No hybridiser registered, , R. aureum var aureum x R. maximum
'aureum x Prelude', unknown, , R. aureum var aureum x 'Prelude'
'aureum X Rubina Group x Fabia Group', No hybridiser registered, , R. aureum var aureum x 'Rubina Group x Fabia Group'
'aureum x wightii', No hybridiser registered, , R. aureum var aureum x R. wightii
'Bally Cotton', 1971, Reese, W.A., , R. degronianum ssp yakushimanum 'Koichiro Wada' x R. aureum var aureum
'Candesance', unknown, , 'Dead Ringer' x R. aureum var aureum
'Delp's Snowball', 1995, Delp Weldon E., Harrisville, Pensylvania, USAR. aureum var aureum x R. maximum
'Easter Chick', 1975, Starling, , R. aureum var aureum x R. dichroanthum ssp scyphocalyx
'Ikina-haru', 1985, Ono, K., , 'Purple Splendour' x R. aureum var aureum
'Last Hurray', 1958, Leach, Dr. David G., North Madison, Ohio, USA'Belle Heller' x R. aureum var aureum
'Nancy Steele' (photoClick to see more information


Nancy Steele
), 1968, Steele, Captain Richard, M., ,
R. aureum var aureum x 'Prelude'
'Nippon-no-haru', 1987, Ono, K., , 'Hotei' x R. aureum var aureum
'Seven Up', 1995, Delp Weldon E., Harrisville, Pensylvania, USAR. aureum var aureum x R. maximum
'Wizard x aureum', No hybridiser registered, , 'Wizard' x R. aureum var aureum


Indirect involvement of R. aureum var aureum in cultivars: (cultivar = direct child/cultivar of aureum var aureum)
'Candescent', Delp Weldon E., Harrisville, Pensylvania, USA'aureum x maximum' x 'Dead Ringer'
'Delp's White Dove', 1992, Delp Weldon E., Harrisville, Pensylvania, USA'aureum x maximum' x 'Catalgla'
'Masterblend', 1983, Delp Weldon E., Harrisville, Pensylvania, USA'maximum x vernicosum' x 'aureum x maximum'
'Yellstar', 1995, Delp Weldon E., Harrisville, Pensylvania, USA'brachycarpum ssp tigerstedtii x Donna Hardgrove' x 'aureum x maximum'
'Nova Sunrise' (photoClick to see more information


Nova Sunrise
), 1988, Craig, D.L., Kentville, Nova Scotia, Canada
'fortunei x smirnowii X yakushimanum x Goldsworth Yellow' x 'aureum x Prelude'
'Yellow Wolf', 1966, Witt, , R. dichroanthum ssp scyphocalyx x 'aureum X Rubina Group x Fabia Group'
'Nordic Smile' (photoClick to see more information


Nordic Smile
), 1985, Lehmann, C.A., Klampenborg, Denmark
R. wardii var wardii x 'aureum x wightii'
'Vinecrest x Marypat X Wizard x aureum', No hybridiser registered, , 'Vinecrest x Marypat' x 'Wizard x aureum'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009