Rhododendron Species


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R. praestans

SubgenusHymenanthes
SectionPontica
SubsectionGrandiaClick to see all Grandia
Synonyms
R. coryphaeum   (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
& Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
R. semnum   (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
& Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
In cultivation since: 1914

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.W. Yunnan, S.E. Tibet 2700-4300 meter

Corolla: obliquely campanulate
Leaves: oblanceolate to obovate

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

Winter: evergreen
Bloomtime: very 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: pink

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: 27
R. praestans per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 11
Belgium : 6
England : 3
United States : 2
France : 2
Canada : 1
Norway : 1
Denmark : 1



Clones / selections
'Exbury Praestans', 1963, unknown, ,
'Sunte Rock', 1969, unknown, ,


Send questions, information or pictures

Rhododendron praestans
Photo byunknown
Date
Location
Rhododendron praestans
Photo byRinus Manders
Date29 October, 2014
LocationBodnant Garden, Conwy, Wales, U.K.
See high-resolution version
Rhododendron praestans
Photo byHerman Van Ree
Date20 October, 2009
LocationNunspeet, Netherlands
Rhododendron praestans
large [5cm.] vegetative bud
Photo byPeter Norris
Date12 May, 2012
LocationPrivate garden on Marthas Vineyard, MA USA [z 6-7]
See high-resolution version
Rhododendron praestans
Photo byRinus Manders
Date29 October, 2014
LocationBodnant Garden, Conwy, Wales, U.K.
See high-resolution version
Rhododendron praestans
Photo byRinus Manders
Date29 October, 2014
LocationBodnant Garden, Conwy, Wales, U.K.
See high-resolution version




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. praestans is directly involved:     show indirect inv.
'Brian Howell', 1984, Betteridge, D., , R. macabeanum x R. praestans
'praestans x montroseanum' (photoClick to see more information


praestans x montroseanum
), unknown, ,
R. praestans x R. montroseanum
'praestans x strigillosum', Watson, E.M. Mrs. (Elsie), Kirkland, WA, USAR. praestans x R. strigillosum


Indirect involvement of R. praestans in cultivars: (cultivar = direct child/cultivar of praestans)
'Chief Sealth X praestans x strigillosum' (photoClick to see more information


Chief Sealth X praestans x strigillosum
), Watson, E.M. Mrs. (Elsie), Kirkland, WA, USA
'Chief Sealth' x 'praestans x strigillosum'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009