Rhododendron Species


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R. impeditum

SubgenusRhododendron
SectionRhododendron
SubsectionLapponicaClick to see all Lapponica
Synonyms
R. litangense   (Hutch.
John Hutchinson
(1884-1972)
England, Blindburn
Botanical-short: Hutch.
)
R. semanteum   (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
)
In cultivation since: 1910

First described: 1916, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
& W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
)

Origin: N. Yunnan, S.W. Sichuan 2700-4900 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: 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: purple

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
: 100 cm. (3ft.)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 98
R. impeditum per country:
(could be a clue for heat/cold-tolerance)

Sweden : 23
United States : 20
Netherlands : 15
Canada : 13
Finland : 11
Denmark : 6
Belgium : 2
France : 2
England : 2
Germany : 2
Spain : 1
Norway : 1



Natural Hybrids
lysolepis =(flavidum x impeditum)

Clones / selections
'Moerhermii', unknown, ,


Send questions, information or pictures

Rhododendron impeditum
Photo byHan Boerrigter
Date07 April, 2001
Locationprivate garden - Groningen - Netherlands
See high-resolution version
Rhododendron impeditum
Photo byDaniele Magro
Date27 April, 2010
LocationPrivate garden, Tirano, Sondrio, Italy
See high-resolution version
Rhododendron impeditum
Photo byDavid and Lorie Ideal Gardens
Date08 March, 2010
LocationIdeal Gardens, Johnstown, PA, USA
See high-resolution version
Rhododendron impeditum
Photo byHerman Van Ree
Date21 April, 2010
Locationown garden Nunspeet, Netherlands
See high-resolution version
Rhododendron impeditum
impeditum select
Photo byDaniele Magro
Date16 April, 2012
LocationPrivate garden, Tirano, Sondrio, Italy
See high-resolution version

Rhododendron impeditum
Photo byHerman Van Ree
Date21 April, 2010
Locationown garden Nunspeet, Netherlands
See high-resolution version
Rhododendron impeditum
2nd time blossom
Photo byHerman Van Ree
Date21 August, 2009
LocationUBC Botanical Gardens, Vancouver
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Rhododendron impeditum
as R. semanteum
Photo byJens Birck
Date16 May, 2005
LocationKastrup, Denmark
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Rhododendron impeditum
Photo byHerman Van Ree
Date18 April, 2009
LocationNunspeet, Netherlands
Rhododendron impeditum
Photo byHan Boerrigter
Date08 April, 2011
Locationprivate garden - Groningen - Netherlands
See high-resolution version
Rhododendron impeditum
Photo byMelanie Kirk
Date18 April, 2010
LocationPrivate garden, Nanaimo (Vancouver Island) BC
See high-resolution version
Rhododendron impeditum
Photo byHerman Van Ree
Date15 April, 2009
LocationNunspeet, Netherlands
Rhododendron impeditum
Photo byDaniele Magro
Date24 March, 2014
LocationPrivate garden, Tirano, Sondrio, Italy
See high-resolution version





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


Amethyst
), 1949, Arends, G., Wuppertal, Germany
R. impeditum x R. hippophaeoides var hippophaeoides
'Azurika' (photoClick to see more information


Azurika
), 1963, Hachmann, Hans, Barmstedt in Holstein, Germany
R. russatum x R. impeditum
'Blaue Mauritius' (photoClick to see more information


Blaue Mauritius
), unknown, ,
R. impeditum x ?
'Blue Tit' (photoClick to see more information


Blue Tit
), 1933, Williams, John Charles, Caerhays, Cornwall, England
R. impeditum x R. augustinii ssp augustinii
'Blue Tit Group' (photoClick to see more information


Blue Tit Group
), 1964, Williams, John Charles, Caerhays, Cornwall, England
R. impeditum x R. augustinii ssp augustinii
'Bluette', 1958, Lancaster, Ben, F., Lackamas Gardens, Camas, Washington, USAR. impeditum x R. augustinii ssp augustinii 'Lackamas Blue'
'Hachmann's Violetta', 1963, Hachmann, Hans, Barmstedt in Holstein, GermanyR. russatum x R. impeditum
'Karin Seleger' (photoClick to see more information


Karin Seleger
), 1971, Brueckner, J.B., Mississauga, Ontario, Canada
R. impeditum x R. dauricum
'Moerheim' (photoClick to see more information


Moerheim
), 1965, Ruys, J.D., Moerheim Nursery, Dedemsvaart, Netherlands
R. impeditum x ?
'Passionate Purple' (photoClick to see more information


Passionate Purple
), Thompson, W. & M., ,
R. impeditum x ?
'Saint Breward' (photoClick to see more information


Saint Breward
), 1962, Magor, E.J.P., Lamellan, St. Tudy, Cornwall, England
R. impeditum x R. augustinii ssp augustinii
'Saint Merryn' (photoClick to see more information


Saint Merryn
), 1970, Harrison, E.G.W.W., Bodmin, Cornwall, England
'Saint Tudy' x R. impeditum
'Saint Tudy' (photoClick to see more information


Saint Tudy
), 1936, Magor, E.J.P., Lamellan, St. Tudy, Cornwall, England
R. impeditum x R. augustinii ssp augustinii
'Sapphire' (photoClick to see more information


Sapphire
), 1931, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
'Blue Tit Group' x R. impeditum
'Triple A' (photoClick to see more information


Triple A
), 1970, Brueckner, J.B., Mississauga, Ontario, Canada
R. minus Carolinianum Group x R. impeditum
'Veesprite', 1967, Forster, R.R., , R. impeditum x R. racemosum
'Vibrant Violet' (photoClick to see more information


Vibrant Violet
), 1966, Fujioka, Frank, Whidbey Island, USA
R. impeditum x R. augustinii ssp augustinii


Indirect involvement of R. impeditum in cultivars: (cultivar = direct child/cultivar of impeditum)
'Blumira' (photoClick to see more information


Blumira
), 1978, Hachmann, Hans, Barmstedt in Holstein, Germany
'Azurika' x 'Blue Tit Group'
'Blumiria' (photoClick to see more information


Blumiria
), 1978, Hachmann, Hans, Barmstedt in Holstein, Germany
'Azurika' x 'Blue Tit Group'
'Luisella' (photoClick to see more information


Luisella
), 1978, Hachmann, Hans, Barmstedt in Holstein, Germany
'Azurika' x 'Blue Tit Magor'
'Maggie' (photoClick to see more information


Maggie
), 1992, Hachmann, Holger, ,
'Saint Merryn' x 'Azurika'
'Ronny', 1992, Hachmann, Holger, , 'Saint Merryn' x 'Azurika'
'Blumira' (photoClick to see more information


Blumira
), 1978, Hachmann, Hans, Barmstedt in Holstein, Germany
'Azurika' x 'Blue Tit Group'
'Blumiria' (photoClick to see more information


Blumiria
), 1978, Hachmann, Hans, Barmstedt in Holstein, Germany
'Azurika' x 'Blue Tit Group'
'Gable's Blue Jay', 1972, Gable, J.B., Stewartstown, Pennsylvania, USA'Blue Tit Group' x
'Pematit Cambridge', 1981, Reuthe, G. Ltd, Ightham, Kent, EnglandR. pemakoense x 'Blue Tit Group'
'Pematit Oxford', 1960, Reuthe, G. Ltd, Ightham, Kent, EnglandR. pemakoense x 'Blue Tit Group'
'Sapphire' (photoClick to see more information


Sapphire
), 1931, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
'Blue Tit Group' x R. impeditum
'Songbird' (photoClick to see more information


Songbird
), 1954, Horlick, Sir James, Isle of Gigha, Scotland
R. russatum x 'Blue Tit Group'
'Songster' (photoClick to see more information


Songster
), 1957, Horlick, Sir James, Isle of Gigha, Scotland
R. russatum x 'Blue Tit Group'
'Sacko', 1970, van Vliet, A., , R. russatum x 'Moerheim'
'Saint Kew', 1970, Harrison, E.G.W.W., Bodmin, Cornwall, EnglandR. augustinii ssp augustinii x 'Saint Breward'
'Saint Minver' (photoClick to see more information


Saint Minver
), 1972, Harrison, E.G.W.W., Bodmin, Cornwall, England
R. russatum x 'Saint Breward'
'Maggie' (photoClick to see more information


Maggie
), 1992, Hachmann, Holger, ,
'Saint Merryn' x 'Azurika'
'Ronny', 1992, Hachmann, Holger, , 'Saint Merryn' x 'Azurika'
'Greeneye', 1948, Harrison, E.G.W.W., Bodmin, Cornwall, EnglandR. augustinii ssp augustinii x 'Saint Tudy'
'Saint Merryn' (photoClick to see more information


Saint Merryn
), 1970, Harrison, E.G.W.W., Bodmin, Cornwall, England
'Saint Tudy' x R. impeditum
'Blue Pool', 1966, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK'Sapphire' x R. augustinii ssp augustinii
'Oceanlake' (photoClick to see more information


Oceanlake
), 1965, Wright, A.O., Canby, Oregon, USA
'Sapphire' x 'Blue Diamond'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009