Rhododendron Hybrids / cultivars

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Rhododendron 'Si Si'

Hybridiser:Delp Weldon E.. Harrisville, Pensylvania, USA, 1973 (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:broadly funnel-campanulate
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)


Seed-parentPollen-parent
R. degronianum ssp yakushimanum   Click to see more information

X'Gold Mohur'   Click to see more information
'Day Dream'   Click to see more information

x'Margaret Dunn Group'   Click to see more information
'Lady Bessborough'   Click to see more informationxR. griersonianum   Click to see more information

R. fortunei ssp discolor   Click to see more information

x'Fabia Group'   Click to see more information



Rhododendron 'Si Si' photos

 
Photo byJim Willhite
Locationown garden West Chester, PA, USA
Date10 May, 2008
See high-resolution picture




Send your own information or pictures


Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Blowout''Goody Goody' x 'Si Si'Delp Weldon E., 1982
'Cisa''Si Si' x 'Serendipity'Delp Weldon E., 1992
'Delp's Dream'   Click to see more information


  Delp's Dream
'Si Si' x 'Serendipity'Delp Weldon E., 1978
'Delp's Tea Time''Si Si' x 'smirnowii x catawbiense'Delp Weldon E., 1978
'Delp's Touch of Class''Goody Goody' x 'Si Si'Delp Weldon E., 1992
'Ginny Mae''catawbiense x Fabia Group' x 'Si Si'Delp Weldon E., 1989
'Goody Goody x Si Si''Goody Goody' x 'Si Si'No hybridiser registered
'Jack Looye''Si Si' x 'Serendipity'Delp Weldon E., 1985
'Pillow Talk''Mrs J G Millais' x 'Si Si'Smith, A.W., 1992
'Si Si x Serendipity''Si Si' x 'Serendipity'No hybridiser registered
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Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009