Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

Rhododendron 'President Roosevelt'

Hybridiser:Mesman, C., 1930 (see more plants of this hybridizer)
Status:IRRC registered.
Additional parentage info:(sport of Limbatum) x ()
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:early midseasonFlower:unknown
Bloom time duration:17
Bloom time duration 'President Roosevelt'

Observation based on 1 plants,
growing in 1 'My-gardens'.

Exact= 17 days.
days.
Type:elepidoteLeaves: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)

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

To try/see this go 'Home' (top-right).
on hirstum.info: 29
R. President Roosevelt per country:
(could be a clue for heat/cold-tolerance)

Canada : 9
Netherlands : 9
United States : 6
Belgium : 2
Poland : 1
New Zealand : 1
France : 1


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

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

xR. ponticum   Click to see more information

?x?


Rhododendron 'President Roosevelt' photos

 
Photo byGarth Wedemire
LocationMike Bale's Garden: Lu Zhu, Agassiz, BC, Canada
Date21 April, 2005
See high-resolution picture
 
Photo byGarth Wedemire
LocationMassa Garden in Victoria, BC, Canada
Date30 April, 2005
See high-resolution picture
 
Photo byGarth Wedemire
LocationMike Bale's Garden: Lu Zhu, Agassiz, BC, Canada
Date21 April, 2005
See high-resolution picture
 
Photo byRinus Manders
Locationown garden, Herpen, Netherlands
Date17 April, 2004
See high-resolution picture
 
Photo byHerman Van Ree
LocationNunspeet, Netherlands
Date16 April, 2009
 
Looks like severe frost-damaged foliage
Photo byBill & Cheryl Gray
LocationCisco Heights National Forest & Rhody Ranch, WA, USA
Date
See high-resolution picture
 
Photo byHerman Van Ree
LocationNunspeet, Netherlands
Date08 April, 2009
 
Severe frost-damage both leaves and flower buds
Photo byHerman Van Ree
Locationown garden Nunspeet, Netherlands
Date28 April, 2010
See high-resolution picture




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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009