Rhododendron Hybrids / cultivars

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Rhododendron 'Oh My!'

Hybridiser:Delp Weldon E.. Harrisville, Pensylvania, USA, 1968 (see more plants of this hybridizer)
Status:IRRC registered.
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
Bloom time:late midseasonFlower:openly funnel-shaped
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)

R. smirnowii   Click to see more information

XR. degronianum ssp yakushimanum   Click to see more information

Rhododendron 'Oh My!' photos

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Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Delp's Chatterbox''Oh My!' x 'Red Brave'Delp Weldon E., 1995
'Gotlots''Princess Elizabeth' x 'Oh My!'Delp Weldon E., 1992
'Oh My! x Catalgla''Oh My!' x R. catawbiense 'Catalgla'No hybridiser registered
'Oh My! x Mary Belle''Oh My!' x 'Mary Belle'No hybridiser registered
'Oh My! x Nova Zembla''Oh My!' x 'Nova Zembla'No hybridiser registered
'Prissy Missy''Oh My!' x 'Indy Pink'Delp Weldon E., 1966
'Radiant Heat''Oh My!' x 'Little Gem'Delp Weldon E., 1992
'Real Pro''Oh My!' x 'Nova Zembla'Delp Weldon E., 1995
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009