Rhododendron Species


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R. atlanticum

SubgenusPentanthera
SectionPentanthera
SubsectionPentantheraClick to see all Pentanthera
Synonyms
Azalea atlantica
R. atlanticum f confusum
R. atlanticum f luteo-album
R. atlanticum f neglectum
R. atlanticum f tomolobum
Azalea neglecta
R. neglectum   (Ashe
William Willard Ashe
(1872-1932)
USA
Botanical-short: Ashe
)
In cultivation since: 1922

First described: 1921, (Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
& E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
)

Origin: Coastal plains Pennsylvania to Georgia 0-150 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: deciduous
Bloomtime: late 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: ????

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
: 150 cm. (5ft.)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 28
R. atlanticum per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 13
Denmark : 4
United States : 3
France : 3
Canada : 3
Finland : 1
Sweden : 1

Common names
Atlantic Azalea
Coastal azalea
Dwarf azalea


Natural Hybrids
pensylvanicum =(atlanticum x periclymenoides)

Clones / selections
'Little's Super Truss', 1995, Little, P.L., Piping Tree Gardens, Beaverdam, Virgina, USA
'Seaboard', unknown, ,


Send questions, information or pictures

Rhododendron atlanticum
Photo byRinus Manders
Date28 April, 2015
LocationPrivate garden, Herpen, Netherlands
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Rhododendron atlanticum
Photo byHank Helm
Date18 May, 2006
LocationRhododendron Species Botanical Garden, Federal Way, WA, USA
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Rhododendron atlanticum
Photo byRinus Manders
Date28 April, 2014
LocationPrivate garden, Herpen, Netherlands
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Rhododendron atlanticum
Photo byGarth Wedemire
Date19 May, 2007
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
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Rhododendron atlanticum
Photo byTadeusz Dauksza
Date04 May, 2010
Locationprivate garden
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Rhododendron atlanticum
Photo byRinus Manders
Date13 June, 2014
LocationArboretum Belmonte, Wageningen, Netherlands
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Rhododendron atlanticum
Photo byDavid and Lorie Ideal Gardens
Date23 May, 2010
LocationIdeal Gardens, Johnstown, PA, USA
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Rhododendron atlanticum
Photo byEverard Daniel
Date26 May, 2003
Locationprivate garden, Reigate, Surrey, UK
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Rhododendron atlanticum
Photo byDavid and Lorie Ideal Gardens
Date23 May, 2010
LocationIdeal Gardens, Johnstown, PA, USA
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Rhododendron atlanticum
Photo byEverard Daniel
Date17 May, 2004
LocationLeonardslee, Sussex, UK
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Rhododendron atlanticum
Photo byTijs Huisman
Date15 May, 2005
Location
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Rhododendron atlanticum
Photo byHank Helm
Date11 May, 2013
LocationHank Helm Garden, Bainbridge Island, WA, USA
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Rhododendron atlanticum
Photo byGarth Wedemire
Date19 May, 2007
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version
Rhododendron atlanticum
Photo byGarth Wedemire
Date19 May, 2007
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version
Rhododendron atlanticum
Photo byCoen Zonneveld
Date17 May, 2002
LocationDiepenveen, Netherlands
See high-resolution version
Rhododendron atlanticum
Photo byCoen Zonneveld
Date17 May, 2002
LocationDiepenveen, Netherlands
Rhododendron atlanticum
Photo byCoen Zonneveld
Date16 May, 2004
Locationprivate garden Groede, Netherlands




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. atlanticum is directly involved:     show indirect inv.
'atlanticum x periclymenoides', No hybridiser registered, , R. atlanticum x R. periclymenoides
'Choptank River Belle', 1985, Carlson's Gardens, (Bob & Janice Carlson), South Salem, New York, USAR. atlanticum x R. periclymenoides
'Choptank River Queen', 1987, Carlson's Gardens, (Bob & Janice Carlson), South Salem, New York, USAR. atlanticum x R. periclymenoides
'Choptank River Traveller' (photoClick to see more information


Choptank River Traveller
), 1989, Crown Estate Commissioners, Windsor, Berkshire, England
R. atlanticum x R. periclymenoides
'Cote Group' (photoClick to see more information


Cote Group
), 1937, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'James Thompson', 1977, Thompson, J.G., , 'Austrinum Gold' x R. atlanticum
'Sherri's Dream', 1982, Sommerville, E.A., , R. atlanticum x ?
'Snowbird' (photoClick to see more information


Snowbird
), 1955, Biltmore Gardens, Asheville. North Carolina, USA
R. atlanticum x R. canescens
'Sweet Pink', 1986, Transplant Nursery, , R. atlanticum x R. calendulaceum
'Tage Buus' (photoClick to see more information


Tage Buus
), 1982, Wise, H., ,
'Brazil x Ilam Yellow' x R. atlanticum
'Tower Beauty' (photoClick to see more information


Tower Beauty
), 1937, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'Tower Dainty' (photoClick to see more information


Tower Dainty
), 1955, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'Tower Daring' (photoClick to see more information


Tower Daring
), 1937, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'Tower Dexter' (photoClick to see more information


Tower Dexter
), 1937, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'Tower Dragon' (photoClick to see more information


Tower Dragon
), 1965, Stevenson, J.B., Ascot, Berkshire, England
R. atlanticum x ?
'Tri-Lights' (photoClick to see more information


Tri-Lights
), 1978, Pellet, H., University of Minnesota Landscape Arboretum, USA
R. atlanticum x ?
'Yellow Surprise', 1986, Transplant Nursery, , R. atlanticum x ?


Indirect involvement of R. atlanticum in cultivars: (cultivar = direct child/cultivar of atlanticum)
'Nacoochee', 1975, Beasley, W.G., Transplant Nursery, Lavonia, Georgia, USA'atlanticum x periclymenoides' x 'atlanticum x periclymenoides'
'Fragrant Star' (photo), 1994, Briggs Nursery, , 'Snowbird' x
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009