Rhododendron Index

R. 'Ogaretta'

Rhododendron Hybrid

R. 'Grierosplendour Group' x R. fortunei ssp fortunei

Hybridized By: Means, R.L.

R. 'Ogi-kasane'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

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R. 'Ogi-nagashi'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Ito, Ihei

R. 'Ogon-no-mai'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Ogon-no-taki'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Ogon-no-tsuki'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Ogurayama'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Ito, Ihei

R. 'Oh Heavens'

Evergreen Azalea Hybrid

R. 'Kagetsu x Silver Cup' x R. 'Masterpiece'

Hybridized By: Hager, D.

R. 'Oh Joy'

Rhododendron Hybrid

? x ?

Hybridized By: Dexter, C.O.

R. 'Oh Joyce'

Rhododendron Hybrid

R. 'smirnowii x yakushimanum' x R. 'Joyce Lyn'

Hybridized By: Delp Weldon E.

R. 'Oh My'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Oh My!'

Rhododendron Hybrid

R. smirnowii x R. degronianum ssp yakushimanum

Hybridized By: Delp Weldon E.

R. 'Oh My! x Catalgla'

Rhododendron Hybrid

R. 'Oh My!' x R. catawbiense 'Catalgla'

R. 'Oh My! x Mary Belle'

Rhododendron Hybrid

R. 'Oh My!' x R. 'Mary Belle'

R. 'Oh My! x Nova Zembla'

Rhododendron Hybrid

R. 'Oh My!' x R. 'Nova Zembla'

R. 'Oh Nuts'

Evergreen Azalea Hybrid

R. 'Harbinger' x R. 'Hatsu-shimo'

Hybridized By: Hager, D.

R. 'Oh Woa!'

Rhododendron Hybrid

R. 'Masterblend' x R. 'Jennypoo'

Hybridized By: Delp Weldon E.

R. 'Oh! Johnny'

Rhododendron Hybrid

? x ?

Hybridized By: Whitney, William E.

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R. 'Oh! Kitty'

Rhododendron Hybrid

? x ?

Hybridized By: Minch, F.

R. 'OH-1'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Aromi, E.J

R. 'Oh-Too'

Rhododendron Hybrid

R. 'China Group' x R. 'Goldbug'

Hybridized By: Elliott, W.

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R. 'Ohio'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Chisholm, J.J.

R. 'Ohio Pink'

Rhododendron Hybrid

R. degronianum ssp yakushimanum x ?

Hybridized By: Ford, J.E.

R. 'Ohio Pink Blush'

Rhododendron Hybrid

R. degronianum ssp yakushimanum x ?

Hybridized By: Ford, J.E.

R. 'Ohio Pink Glo'

Rhododendron Hybrid

R. degronianum ssp yakushimanum x ?

Hybridized By: Ford, J.E.

R. 'Ohio White'

Rhododendron Hybrid

R. degronianum ssp yakushimanum x ?

Hybridized By: Ford, J.E.

R. 'Oie-murasaki'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Ito, Ihei

R. 'Oimatsu'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Oino-mezane'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Oji-kasane'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

R. 'Ok Tedi Gold'

Vireya Hybrid

R. 'Tropic Glow' x R. lacteum

Hybridized By: Cullinane, M.D.

R. 'Oklahoma'

Rhododendron Hybrid

R. 'Bellerophon Group' x R. 'Tally Ho Group'

Hybridized By: Rothschild, L. de

R. 'Oklahoma Group'

Rhododendron Cultivar group

R. 'Bellerophon Group' x R. 'Tally Ho Group'

Hybridized By: Rothschild, L. de

R. 'Oku-murasaki'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Ito, Ihei

R. 'Olan Ragan'

Rhododendron Hybrid

? x ?

Hybridized By: Ragan, W.A

R. 'Old Cardinal'

Rhododendron Hybrid

? x ?

Hybridized By: Crosfield, J. J.

R. 'Old Copper'

Rhododendron Hybrid

R. 'Vulcan' x R. 'Fabia Group'

Hybridized By: van Veen, T. (includes Sr. & Junior)

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R. 'Old Copper x Mrs T H Lowinsky'

Rhododendron Hybrid

R. 'Old Copper' x R. 'Mrs T H Lowinsky'

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R. 'Old Faithful'

Rhododendron Hybrid

? x R. 'Mars'

Hybridized By: Haag, C.R. & V. (Velma)

R. 'Old Faithful'

Evergreen Azalea Hybrid

R. yedoense var poukhanense x R. kaempferi

Hybridized By: Gable, J.B.

R. 'Old Gold'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Exbury

R. 'Old Lace'

Rhododendron Hybrid

R. 'Chionoides' x ?

Hybridized By: Fretz, L.

R. 'Old Ming'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Coolidge Rare Plant gardens

R. 'Old Port'

Rhododendron Hybrid

R. ponticum x ?

Hybridized By: Waterer, H. (Knaphill)

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R. 'Old Rose'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Aromi, E.J

R. 'Old Spice'

Rhododendron Hybrid

R. decorum ssp decorum x R. 'Azor Group'

Hybridized By: Lancaster, Ben, F.

R. 'Old Wine'

Azalea Hybrid

? x ?

Hybridized By: Coolidge Rare Plant gardens

R. 'Oldenburg Group'

Rhododendron Cultivar group

R. fortunei ssp discolor x R. williamsianum

Hybridized By: Hobbie, Dietrich G.

R. 'Oldenburgia'

Rhododendron Hybrid

? x ?

Hybridized By: Walther, C.J.H.

R. 'Oldewig'

Rhododendron Hybrid

R. catawbiense x ?

Hybridized By: Seidel, T.J.R.

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