Rhododendron Species


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R. austrinum

SubgenusPentanthera
SectionPentanthera
SubsectionPentantheraClick to see all Pentanthera
Synonyms
Azalea austrina
In cultivation since: ?

First described:

Origin:

Corolla: unknown
Leaves: unknown

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

Winter: deciduous
Bloomtime: 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)


Predominant color: ????

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
: ?

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

To try/see this go 'Home' (top-right).
on hirstum.info: 16
R. austrinum per country:
(could be a clue for heat/cold-tolerance)

Denmark : 11
Netherlands : 2
United States : 2
France : 1



Clones / selections
'Greenville Gold', 1985, Dodd, W., ,
'Kate', 1987, Sommerville, E.A., ,
'Millie Mac', unknown, ,
'Moonbeam', 1974, Rhododendron Species Foundation, ,


Send questions, information or pictures

Rhododendron austrinum
Photo byTijs Huisman
Date28 April, 2003
Locationgarden Larry Coleman
See high-resolution version
Rhododendron austrinum
Photo byJim Willhite
Date26 May, 2012
LocationJenkins Arboretum, Devon, PA, USA
See high-resolution version
Rhododendron austrinum
Photo byTijs Huisman
Date28 April, 2003
Locationgarden Larry Coleman
See high-resolution version
Rhododendron austrinum
Photo byunknown
Date
Location




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. austrinum is directly involved:     show indirect inv.
'AL-48', Aromi, E.J, Mobile, Alabama, USA? x R. austrinum
'Appalachian Gold', Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'Appalachia'
'April Fanfare', Aromi, E.J, Mobile, Alabama, USA'TW-2' x R. austrinum
'April Follies', Aromi, E.J, Mobile, Alabama, USA'George Reynolds' x R. austrinum
'Aromi Sunny-side-up', 1978, Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'Golden Sunset'
'Aromi Sunrise', 1978, Aromi, E.J, Mobile, Alabama, USA'Hiawatha' x R. austrinum
'Aromi Sunstruck', 1971, Aromi, E.J, Mobile, Alabama, USAR. austrinum x ?
'austrinum x alabamense', Aromi, E.J, Mobile, Alabama, USAR. austrinum x R. alabamense
'Canary Isles', Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'Golden Sunset'
'Cape Fear Gold' (photoClick to see more information


Cape Fear Gold
), 1978, Player, L. M., Fayetteville, North Carolina, USA
R. austrinum x R. calendulaceum
'Earl's Gold' (photoClick to see more information


Earl's Gold
), 1972, Sommerville, E.A., ,
R. austrinum x ?
'Elmer's Orange', Elmer, G. & T., , R. austrinum x 'Orangeade'
'Fool's Folly', Aromi, E.J, Mobile, Alabama, USA'Rothschild Supreme' x R. austrinum
'Forty-niner', Aromi, E.J, Mobile, Alabama, USA'Rothschild Supreme' x R. austrinum
'Four Kings', Aromi, E.J, Mobile, Alabama, USA'Golden Peace' x R. austrinum
'Frontier Gold' (photoClick to see more information


Frontier Gold
), 1971, Aromi, E.J, Mobile, Alabama, USA
'Rothschild Supreme' x R. austrinum
'HM-1', Aromi, E.J, Mobile, Alabama, USA'Hiawatha' x R. austrinum
'KY-7', Aromi, E.J, Mobile, Alabama, USA'Sylphides' x R. austrinum
'Liz Colbert', 1979, Aromi, E.J, Mobile, Alabama, USAR. viscosum Serrulatum Group x R. austrinum
'Mary Ann Elmer', 1966, Elmer, G. & T., , 'Orangeade' x R. austrinum
'OF-1', Aromi, E.J, Mobile, Alabama, USA'K-38' x R. austrinum
'ON-3', Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'Elmer's Orange'
'Red Pepper', 1980, Aromi, E.J, Mobile, Alabama, USA'Gallipoli' x R. austrinum
'Saint Stanislaus', 1966, Elmer, G. & T., , 'Orangeade' x R. austrinum
'Tradewinds', Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'George Reynolds'
'Yellow River', 1951, Skinner, H.T., , R. austrinum x R. canescens
'Yellow Sand', 1966, Elmer, G. & T., , 'George Reynolds' x R. austrinum
Hybrids where clones/selections of R. austrinum are involved (alphabetical per clone)
'Georgia Giant', 1971, Harris, J.O., Lawrenceville, Georgia, USAR. austrinum 'Moonbeam' x R. mucronatum var mucronatum 'Lilacinum'
'Rain Fire', 1970, Harris, J.O., Lawrenceville, Georgia, USAR. austrinum 'Moonbeam' x R. mucronatum var mucronatum 'Lilacinum'
'Taenzer', 1973, Ring, G.W., , R. austrinum 'Moonbeam' x 'Beacon'


Indirect involvement of R. austrinum in cultivars: (cultivar = direct child/cultivar of austrinum)
'NR-1', Aromi, E.J, Mobile, Alabama, USA'AL-48' x 'Cecile'
'Dancing Rabbit', Aromi, E.J, Mobile, Alabama, USA'Appalachian Gold' x 'Goldstrike'
'Bees Haven', Aromi, E.J, Mobile, Alabama, USA'austrinum x alabamense' x
'ON-3', Aromi, E.J, Mobile, Alabama, USAR. austrinum x 'Elmer's Orange'
'Centerpiece', Aromi, E.J, Mobile, Alabama, USA'Fool's Folly' x 'Elmer's Yellow'
'Frontier Red', Aromi, E.J, Mobile, Alabama, USA'Forty-niner' x 'Tintoretto'
'Goldrush', Aromi, E.J, Mobile, Alabama, USA'Forty-niner' x 'Hiawatha'
'April Yellow', Aromi, E.J, Mobile, Alabama, USA'Sunbeam' x 'HM-1'
'Spring Fanfare' (photo), Aromi, E.J, Mobile, Alabama, USA'Sunbeam' x 'HM-1'
'Decidedly Pink', Aromi, E.J, Mobile, Alabama, USA'KY-7' x 'NR-1'
'Clearcreek' (photo), 1986, Aromi, E.J, Mobile, Alabama, USA'OF-1' x 'Centerpiece'
'Radiant Red' (photo), 1992, Aromi, E.J, Mobile, Alabama, USA'ON-3' x 'Red King'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009