Sibling Search

R. 'Halopeanum'

Azalea Hybrid

R. griffithianum X R. maximum

Hybridized By: Halopé, F

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R. 'ponticum x maximum'

Azaleodendron Hybrid

R. ponticum X R. maximum

R. 'Hybridum Group'

Azaleodendron Hybrid

R. viscosum X R. maximum

R. 'aureum x maximum'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

R. 'Jean Leppo'

Rhododendron Hybrid

R. catawbiense X R. maximum

Hybridized By: Smith, W.D.

R. 'Ignescens'

Rhododendron Hybrid

R. arboreum ssp arboreum X R. maximum

Hybridized By: Rogers, W.H. & Son

R. 'Whizette'

Rhododendron Hybrid

R. 'Princess Elizabeth' X R. maximum

Hybridized By: Delp Weldon E.

R. 'Edith Pride'

Rhododendron Hybrid

R. 'English Roseum' X R. maximum

Hybridized By: Pride, O.S.

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R. 'Hypermax'

Rhododendron Hybrid

R. hyperythrum X R. maximum

Hybridized By: Delp Weldon E.

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R. 'Mrs Sam'

Rhododendron Hybrid

R. catawbiense X R. maximum

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R. 'Ponticum Roseum'

Rhododendron Hybrid

R. ponticum X R. maximum

Hybridized By: Pride, O.S.

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R. 'Russell Harmon'

Rhododendron Hybrid

R. catawbiense X R. maximum

Hybridized By: Harmon, R.

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R. 'Dona Maria'

Rhododendron Hybrid

R. ponticum X R. maximum

Hybridized By: de Clerck d'Olsene

R. 'Golly Gee'

Rhododendron Hybrid

R. 'Donna Hardgrove' X R. maximum

Hybridized By: Ring, T.L.

R. 'Ghost'

Rhododendron Hybrid

R. 'maximum x yakushimanum' X R. maximum

Hybridized By: Delp Weldon E.

R. 'yakushimanum x maximum'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. maximum

R. 'Seven Up'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

Hybridized By: Delp Weldon E.

R. 'Powerhouse'

Rhododendron Hybrid

R. 'America x Doctor V.H. Rutgers' X R. maximum

Hybridized By: Delp Weldon E.

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R. 'Delp's Snowball'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

Hybridized By: Delp Weldon E.

R. 'Prince Camille de Rohan'

Azaleodendron Hybrid

R. maximum X ?

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R. 'maximum x Honeymoon'

Rhododendron Hybrid

R. maximum X R. 'Honeymoon'

R. 'Baccalaureate'

Rhododendron Hybrid

R. maximum X R. fortunei ssp discolor

Hybridized By: Gable, J.B.

R. 'maximum x Goldsworth Orange'

Rhododendron Hybrid

R. maximum X R. 'Goldsworth Orange'

R. 'July Possibility'

Rhododendron Hybrid

R. maximum X R. 'Ponticum Roseum'

Hybridized By: Scott Arboretum

R. 'maximum x vernicosum'

Rhododendron Hybrid

R. maximum X R. vernicosum

R. 'Albert Close'

Rhododendron Hybrid

R. maximum X R. 'Mrs Jamie Fraser'

Hybridized By: Fraser, G.

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R. 'Jason's Maxim'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Bowers, C.G.

R. 'Fresh Heir'

Rhododendron Hybrid

R. maximum X R. thomsonii ssp thomsonii

Hybridized By: Delp Weldon E.

R. 'Judy Spillane'

Rhododendron Hybrid

R. maximum X R. 'Janet Blair'

Hybridized By: Wister, J.C.

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R. 'maximum x thomsonii'

Rhododendron Hybrid

R. maximum X R. thomsonii ssp thomsonii

R. 'Cool Trend'

Rhododendron Hybrid

R. maximum X R. 'Buttermint'

Hybridized By: Ring, T.L.

R. 'Arctic Snow'

Rhododendron Hybrid

R. maximum X R. brachycarpum ssp tigerstedtii

Hybridized By: Behring, R.

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R. 'Queen Victoria'

Rhododendron Hybrid

R. maximum X R. 'Altaclerense Group'

Hybridized By: Standish & Noble

R. 'Elizabeth Scholtz'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Smith, W.D.

R. 'Adele's Pink'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Fetterhoff, W.M.

R. 'Mademoiselle Marie van Houtte'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Van Houtte, L. B. (Louis Benoit)

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R. 'Late Arrival'

Rhododendron Hybrid

R. maximum X R. 'C.S. Sargent'

Hybridized By: Scott Arboretum

R. 'Late Beginning'

Rhododendron Hybrid

R. maximum X R. 'C.S. Sargent'

Hybridized By: Scott Arboretum

R. 'Maxecat'

Rhododendron Hybrid

R. maximum X R. catawbiense

Hybridized By: Gable, J.B.

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R. 'Summer Summit'

Rhododendron Hybrid

R. maximum X R. 'auriculatum x fortunei discolor'

Hybridized By: Leach, Dr. David G.

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R. 'Edith'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Pride, O.S.

R. 'Eileen'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Waterer (Bagshot)

R. 'Alumni Day'

Rhododendron Hybrid

R. maximum X R. fortunei ssp discolor

Hybridized By: Nearing, G.G.

R. 'June Achievement'

Rhododendron Hybrid

R. maximum X R. fortunei ssp discolor

Hybridized By: Wister, J.C.

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R. 'June Maid'

Rhododendron Hybrid

R. maximum X R. fortunei ssp discolor

Hybridized By: Wister, J.C.

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R. 'maximum x haematodes'

Rhododendron Hybrid

R. maximum X R. haematodes ssp haematodes

R. 'maximum x calophytum'

Rhododendron Hybrid

R. maximum X R. calophytum var calophytum

Hybridized By: Kehr, A.E.

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R. 'Independence Day'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Waterer, H. (Knaphill)

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R. 'Lady Annette de Trafford'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Waterer, H. (Knaphill)

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R. 'Lady Clementine Mitford'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Waterer, H. (Knaphill)

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