Rhododendron Hybrids / cultivars

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Rhododendron 'Cosmopolitan'

Hybridiser:Hagen, J.C.. Boskoop, Netherlands, 1957 (see more plants of this hybridizer)
Status:IRRC registered.
Height
Height
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
150 cm. (5ft.)
Bloom time:late midseasonFlower:unknown
Type:elepidoteLeaves:unknown
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)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 32
R. Cosmopolitan per country:
(could be a clue for heat/cold-tolerance)

France : 15
Canada : 7
Netherlands : 5
England : 2
United States : 1
Norway : 1
Germany : 1


Seed-parentPollen-parent
'Cunningham's White'   Click to see more information

X'Vesuvius'   Click to see more information
R. caucasicum   Click to see more information

xR. ponticum   Click to see more information

R. arboreum ssp arboreum   Click to see more information

xR. catawbiense   Click to see more information



Rhododendron 'Cosmopolitan' photos

 
Photo byPaul & Linda Lawry
Locationprivate garden Lantzville, Vancouver Island, BC, Canada
Date
See high-resolution picture
 
Photo byHan Boerrigter
Locationprivate garden Groningen, Nederland
Date21 April, 2011
See high-resolution picture
 
Photo byJeannie & Calvin Parsons
LocationGlendale Gardens, Victoria, BC, Canada
Date21 April, 2010
See high-resolution picture
 
Photo byFrederick Thurber
LocationPrivate garden, Westport Point, Massachusetts, USA
Date25 April, 2012
See high-resolution picture
 
Photo byNursery azaleatuin.be
LocationKruishoutem, Belgium
Date
 
Photo byFrederick Thurber
LocationPrivate garden in Westport Point, Massachusetts, MA
Date21 April, 2012
See high-resolution picture
 
Photo byHan Boerrigter
LocationPrivate garden, Mussel, Groningen, Netherlands
Date20 April, 2011
See high-resolution picture
 
Photo byHan Boerrigter
LocationPrivate garden, Mussel, Groningen, Netherlands
Date10 May, 2013
See high-resolution picture
 
Photo byHan Boerrigter
LocationPrivate garden Groningen, Nederland
Date30 April, 2009
See high-resolution picture
 
Photo byKen Gibson
LocationPrivate garden, Tofino, Vancouver Island, Canada
Date14 April, 2004
See high-resolution picture
 
flowerbud
Photo byHerman Van Ree
Locationown garden Nunspeet, Netherlands
Date22 March, 2010
 
Photo byHerman Van Ree
Locationown garden Nunspeet, Netherlands
Date13 April, 2010
See high-resolution picture
 
Photo byHerman Van Ree
Locationown garden Nunspeet, Netherlands
Date23 April, 2010
See high-resolution picture




Send your own information or pictures


Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Cosmopolitan x Scintillation''Cosmopolitan' x 'Scintillation'No hybridiser registered
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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009