Rhododendron Species


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R. rigidum

SubgenusRhododendron
SectionRhododendron
SubsectionTrifloraClick to see all Triflora
Synonyms
R. caeruleum   (H.LÚv.
Augustin Abel Hector LÚveillÚ
(1863-1918)
France
Botanical-short: H.LÚv.
)
R. eriandrum   (H.LÚv.
Augustin Abel Hector LÚveillÚ
(1863-1918)
France
Botanical-short: H.LÚv.
)
R. hesperium   (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
& Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
R. racemosum var rigidum
R. rarosquameum   (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
)
R. sycnanthum   (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.
)
In cultivation since: 1910

First described: 1886, (Franch.
Adrien RenÚ Franchet
(1834-1900)
France
Botanical-short: Franch.
)

Origin: N. Yunnan and S. Sichuan 800-6500 meter

About rigidum : "stiff"

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 midseason
Hardiness: H3
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: white

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
: 250 cm. (8ft.)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 23
R. rigidum per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 7
United States : 6
Canada : 5
England : 2
Germany : 1
Norway : 1
France : 1



Clones / selections
'Album', 1988, UK, No hybridizer registered, ,
'Louvecienne', unknown, ,


Send questions, information or pictures

Rhododendron rigidum
Photo bySusan Lightburn
Date27 April, 2013
LocationArt Lightburn Garden, Vancouver Island, BC, Canada
See high-resolution version
Rhododendron rigidum
Photo byWillem Van 't Zelfde
Date30 April, 2014
LocationPrivate garden, Sauerland (500 m), Germany
See high-resolution version
Rhododendron rigidum
Photo byJeannie & Calvin Parsons
Date07 April, 2010
LocationGlendale Gardens, Victoria, BC, Canada
See high-resolution version
Rhododendron rigidum
Photo byGarth Wedemire
Date23 April, 2010
Locationprivate garden, Shawnigan Lake, Vancouver Island , BC, Canada
See high-resolution version
Rhododendron rigidum
Photo byWillem Van 't Zelfde
Date06 May, 2013
LocationPrivate garden (500 m high), Sauerland, Germany
Rhododendron rigidum
Photo byGarth Wedemire
Date23 April, 2010
Locationprivate garden, Shawnigan Lake, Vancouver Island , BC, Canada
See high-resolution version
Rhododendron rigidum
Photo byCoen Zonneveld
Date23 April, 2005
Locationprivate garden Blaricum, Netherlands
See high-resolution version
Rhododendron rigidum
Photo byCoen Zonneveld
Date23 April, 2005
Locationprivate garden Blaricum, Netherlands
Rhododendron rigidum
Photo byWillem Van 't Zelfde
Date30 April, 2014
LocationPrivate garden, Sauerland (500 m), Germany
See high-resolution version
Rhododendron rigidum
Photo byHank Helm
Date09 May, 2014
LocationPrivate garden, Bainbridge Island, WA, USA
See high-resolution version
Rhododendron rigidum
Photo byGarth Wedemire
Date23 April, 2010
Locationprivate garden, Shawnigan Lake, Vancouver Island , BC, Canada
See high-resolution version




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. rigidum is directly involved:     show indirect inv.
'Lemon Bill Group', 1943, Aberconway, Lord, Bodnant, Tal-y-Cafn, WalesR. rigidum x R. cinnabarinum ssp xanthocodon Concatenans Group

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Rhododendron Species   Hirsutum.info     Project started 03 June 2009