Rhododendron Species

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R. augustinii ssp chasmantum

Subgenus	Rhododendron
Section	Rhododendron
Subsection	TrifloraClick to see all Triflora

Synonyms

R. augustinii f subglabra

R. chasmanthoides (Balf.f.

Isaac Bayley Balfour

(1853-1922)

Scotland, Edinburgh

Botanical-short: Balf.f.

& Forrest

George Forrest

(1873-1932)

Scotland, Falkirk

Botanical-short: Forrest

)

R. chasmanthum

R. hirsuticostatum (Hand.-Mazz.

Heinrich Raphael Eduard von Handel-Mazzetti

(1882-1940)

Austria, Vienna

Botanical-short: Hand.-Mazz.

)

In cultivation since: 1919

First described: 1912, (Diels

Dr. Friedrich Ludwig Emil Diels

(1874-1945)

Germany, Hamburg

Botanical-short: Diels

)

Origin: Yunnan, S.E. Tibet and W. Sichuan

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: unknown
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: violet

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

: 400 cm. (13ft.)

Registered

In 'Your Garden' you can administrate
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To try/see this go 'Home' (top-right).

on hirstum.info: 6

R. augustinii ssp chasmantum per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 2
England : 1
Canada : 1
Denmark : 1
France : 1

Send questions, information or pictures

RSF#69/092

Photo by	John Weagle
Date	26 May, 2011
Location	Argyle, Nova Scotia, Canada
See high-resolution version

RSF#69/092

Photo by	John Weagle
Date	26 May, 2011
Location	Argyle, Nova Scotia, Canada
See high-resolution version

Photo by	Rinus Manders
Date	21 May, 2014
Location	Ness Botanic Garden, Neston, Cheshire, UK
See high-resolution version

Photo by	Rinus Manders
Date	21 May, 2014
Location	Ness Botanic Garden, Neston, Cheshire, UK
See high-resolution version

Photo by	Garth Wedemire
Date	16 April, 2005
Location	Rhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version

Photo by	Garth Wedemire
Date	01 May, 2009
Location	Meerkerk Garden, Whidbey Island USA
See high-resolution version

Photo by	Garth Wedemire
Date	01 May, 2009
Location	Meerkerk Garden, Whidbey Island USA
See high-resolution version

Photo by	Garth Wedemire
Date	30 April, 2005
Location	The Hopper Garden Victoria, BC, Canada
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Photo by	Herman Van Ree
Date	23 March, 2010
Location	own garden Nunspeet, Netherlands
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Photo by	Theo Damen
Date	21 April, 2004
Location	Arboretum Belmonte, Wageningen, Netherlands
See high-resolution version

Photo by	Herman Van Ree
Date	26 October, 2009
Location	Arboretum Belmonte, Wageningen, Netherlands

Parentage according the IRRC of the Royal Horticultural Society

Hybrids / cultivars where R. augustinii ssp chasmantum is directly involved: show indirect inv.
'Alexandra Gordon', 1976, Gordon, Lady Adam, ,	R. cinnabarinum ssp cinnabarinum Roylei Group x R. *augustinii ssp chasmantum*
'Blue Mist', 1960, Balch, R.W., Parks & Garden Dept., Dunedin, New Zealand	R. *augustinii ssp chasmantum* x R. maddenii ssp maddenii 'Kotuko'
'Don's Blue Star' (photoClick to see more information Don's Blue Star), 2005, Meerkerk, A., Meerkerk Rhododendrons Gardens, Greenbank, Washington, USA	R. augustinii ssp augustinii x R. *augustinii ssp chasmantum*
'Electra' (photoClick to see more information Electra), 1937, Rothschild, L. de, Founder of Exbury Gardens, UK	R. *augustinii ssp chasmantum* x R. augustinii ssp augustinii
'Electra Group', 1937, Rothschild, L. de, Founder of Exbury Gardens, UK	R. *augustinii ssp chasmantum* x R. augustinii ssp augustinii

Indirect involvement of R. augustinii ssp chasmantum in cultivars: (cultivar = direct child/cultivar of augustinii ssp chasmantum)
'Electra's Son', 1975, Parker, E.K., ,	'Electra' x
'Dorset Blue', 1969, May, J., ,	'Electra Group' x 'Blue Diamond Group'
'Ilam Violet' (photoClick to see more information Ilam Violet), 1947, Stead, E.F., ,	'Electra Group' x R. russatum

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Rhododendron Species Hirsutum.info Project started 03 June 2009