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R. 'Adele's Pink'

(R. maximum ) X ()

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R. 'aureum x maximum' Rhododendron Hybrid R. aureum var aureum X R. maximum Hybridized By: No hybridiser registered	More information
R. 'Whizette' Rhododendron Hybrid R. 'Princess Elizabeth' X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1992	More information
R. 'Ignescens' Rhododendron Hybrid R. arboreum ssp arboreum X R. maximum Hybridized By: Rogers, W.H. & Son, 1932	More information
R. 'Hypermax' Rhododendron Hybrid R. hyperythrum X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1999 More information and pictures
R. 'Russell Harmon' Rhododendron Hybrid R. catawbiense X R. maximum Hybridized By: Harmon, R., 1950 More information and pictures
R. 'Ghost' Rhododendron Hybrid R. 'maximum x yakushimanum' X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1974	More information
R. 'Mrs Sam' Rhododendron Hybrid R. catawbiense X R. maximum Hybridized By: Unknown More information and pictures
R. 'Edith Pride' Rhododendron Hybrid R. 'English Roseum' X R. maximum Hybridized By: Pride, O.S.. Butler, Pennsylvania, USA, 1958 More information and pictures
R. 'Golly Gee' Rhododendron Hybrid R. 'Donna Hardgrove' X R. maximum Hybridized By: Ring, T.L.. Bellaire, Ohio, USA, 1977	More information
R. 'Jean Leppo' Rhododendron Hybrid R. catawbiense X R. maximum Hybridized By: Smith, W.D.. Spring Grove, Pennsylvania, USA, 1969	More information
R. 'Seven Up' Rhododendron Hybrid R. aureum var aureum X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1995	More information
R. 'yakushimanum x maximum' Rhododendron Hybrid R. degronianum ssp yakushimanum X R. maximum Hybridized By: No hybridiser registered	More information
R. 'Dona Maria' Rhododendron Hybrid R. ponticum X R. maximum Hybridized By: de Clerck d'Olsene, 1855	More information
R. 'Powerhouse' Rhododendron Hybrid R. 'America x Doctor V.H. Rutgers' X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1974 More information and pictures
R. 'Ponticum Roseum' Rhododendron Hybrid R. ponticum X R. maximum Hybridized By: Pride, O.S.. Butler, Pennsylvania, USA, 1958 More information and pictures
R. 'Delp's Snowball' Rhododendron Hybrid R. aureum var aureum X R. maximum Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1995	More information
R. 'Halopeanum' Azalea Hybrid R. griffithianum X R. maximum Hybridized By: Halopé, F, 1896 More information and pictures
R. 'Hybridum Group' Azaleodendron Hybrid R. viscosum X R. maximum Hybridized By: Herbert, Honourable & Reverend W. \| Wetherby, Yorkshire \| England, 1817	More information
R. 'ponticum x maximum' Azaleodendron Hybrid R. ponticum X R. maximum Hybridized By: No hybridiser registered	More information
R. 'Queen Victoria' Rhododendron Hybrid R. maximum X R. 'Altaclerense Group' Hybridized By: Standish & Noble. Bagshot, Surrey, England, 1850	More information
R. 'Alumni Day' Rhododendron Hybrid R. maximum X R. fortunei ssp discolor Hybridized By: Nearing, G.G.. Ramsey, NJ, USA, 1958	More information
R. 'Cool Trend' Rhododendron Hybrid R. maximum X R. 'Buttermint' Hybridized By: Ring, T.L.. Bellaire, Ohio, USA, 1986	More information
R. 'Eileen' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer (Bagshot). Surrey, England, 1920	More information
R. 'Elizabeth Scholtz' Rhododendron Hybrid R. maximum X ? Hybridized By: Smith, W.D.. Spring Grove, Pennsylvania, USA, 1962	More information
R. 'Lady Annette de Trafford' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1874 More information and pictures
R. 'Lady Eleanor Cathcart' Rhododendron Hybrid R. maximum X R. arboreum ssp arboreum Hybridized By: Waterer John, Sons & Crisp. Bagshot, Surrey, UK, 1850 More information and pictures
R. 'Mademoiselle Marie van Houtte' Rhododendron Hybrid R. maximum X ? Hybridized By: Van Houtte, L. B. (Louis Benoit). Gentbrugge, Belgium, 1879 More information and pictures
R. 'Alarm' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1860 More information and pictures
R. 'July Possibility' Rhododendron Hybrid R. maximum X R. 'Ponticum Roseum' Hybridized By: Scott Arboretum, 1953	More information
R. 'Independence Day' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1915 More information and pictures
R. 'Summer Snow' Rhododendron Hybrid R. maximum X R. 'ungernii x auriculatum' Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1969 More information and pictures
R. 'Late Beginning' Rhododendron Hybrid R. maximum X R. 'C.S. Sargent' Hybridized By: Scott Arboretum, 1953	More information
R. 'Angel Glow' Rhododendron Hybrid R. maximum X R. degronianum ssp yakushimanum 'Koichiro Wada' Hybridized By: Unknown	More information
R. 'Adele's Yellow' Rhododendron Hybrid R. maximum X R. wardii var wardii Hybridized By: Fetterhoff, W.M.. Gibsonia, Pennsylvania, USA, 1964	More information
R. 'maximum x haematodes' Rhododendron Hybrid R. maximum X R. haematodes ssp haematodes Hybridized By: Unknown	More information
R. 'Florence Rinehimer' Rhododendron Hybrid R. maximum X ? Hybridized By: Smith, W.D.. Spring Grove, Pennsylvania, USA, 1971	More information
R. 'Stokes Bronze Wings' Rhododendron Hybrid R. maximum X R. catawbiense Hybridized By: Stokes, W.E., 1943	More information
R. 'maximum x yakushimanum' Rhododendron Hybrid R. maximum X R. degronianum ssp yakushimanum Hybridized By: No hybridiser registered	More information
R. 'Harold Amateis' Rhododendron Hybrid R. maximum X R. strigillosum Hybridized By: Amateis, Edmond. Brewster, New York, USA, 1967 More information and pictures
R. 'Lady Clementine Mitford' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1870 More information and pictures
R. 'Late Arrival' Rhododendron Hybrid R. maximum X R. 'C.S. Sargent' Hybridized By: Scott Arboretum, 1953	More information
R. 'Jason's Maxim' Rhododendron Hybrid R. maximum X ? Hybridized By: Bowers, C.G., 1927	More information
R. 'Folcroft' Rhododendron Hybrid R. maximum X R. 'maximum x fortunei' Hybridized By: Scott Arboretum, 1958	More information
R. 'Doctor Denis Percell' Rhododendron Hybrid R. maximum X R. 'Leo Group' Hybridized By: Goodrich, J.M. (Jane) & Ray. Vienna, Virginia, USA, 1971	More information
R. 'maximum x catawbiense' Rhododendron Hybrid R. maximum X R. catawbiense Hybridized By: No hybridiser registered	More information
R. 'Marchioness of Lansdowne' Rhododendron Hybrid R. maximum X ? Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1879 More information and pictures
R. 'June Magic' Rhododendron Hybrid R. maximum X R. fortunei ssp discolor Hybridized By: Scott Arboretum, 1953	More information
R. 'Alandale' Rhododendron Hybrid R. maximum X R. fortunei ssp discolor Hybridized By: Nearing, G.G.. Ramsey, NJ, USA, 1938	More information
R. 'Baccalaureate' Rhododendron Hybrid R. maximum X R. fortunei ssp discolor Hybridized By: Gable, J.B.. Stewartstown, Pennsylvania, USA, 1972	More information
R. 'Othello' Rhododendron Hybrid R. maximum X ? Hybridized By: Standish & Noble. Bagshot, Surrey, England, 1847	More information
R. 'Susan Kay' Rhododendron Hybrid R. maximum X R. wardii var wardii Hybridized By: Fetterhoff, W.M.. Gibsonia, Pennsylvania, USA, 1964	More information

	Require Seed X Pollen in the Same Positions
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Sibling Search

R. 'Adele's Pink'

(R. maximum ) X ()

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R. 'aureum x maximum'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

More information

R. 'Whizette'

Rhododendron Hybrid

R. 'Princess Elizabeth' X R. maximum

More information

R. 'Ignescens'

Rhododendron Hybrid

R. arboreum ssp arboreum X R. maximum

More information

R. 'Hypermax'

Rhododendron Hybrid

R. hyperythrum X R. maximum

R. 'Russell Harmon'

Rhododendron Hybrid

R. catawbiense X R. maximum

R. 'Ghost'

Rhododendron Hybrid

R. 'maximum x yakushimanum' X R. maximum

More information

R. 'Mrs Sam'

Rhododendron Hybrid

R. catawbiense X R. maximum

R. 'Edith Pride'

Rhododendron Hybrid

R. 'English Roseum' X R. maximum

R. 'Golly Gee'

Rhododendron Hybrid

R. 'Donna Hardgrove' X R. maximum

More information

R. 'Jean Leppo'

Rhododendron Hybrid

R. catawbiense X R. maximum

More information

R. 'Seven Up'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

More information

R. 'yakushimanum x maximum'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. maximum

More information

R. 'Dona Maria'

Rhododendron Hybrid

R. ponticum X R. maximum

More information

R. 'Powerhouse'

Rhododendron Hybrid

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

R. 'Ponticum Roseum'

Rhododendron Hybrid

R. ponticum X R. maximum

R. 'Delp's Snowball'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

More information

R. 'Halopeanum'

Azalea Hybrid

R. griffithianum X R. maximum

R. 'Hybridum Group'

Azaleodendron Hybrid

R. viscosum X R. maximum

More information

R. 'ponticum x maximum'

Azaleodendron Hybrid

R. ponticum X R. maximum

More information

R. 'Queen Victoria'

Rhododendron Hybrid

R. maximum X R. 'Altaclerense Group'

More information

R. 'Alumni Day'

Rhododendron Hybrid

R. maximum X R. fortunei ssp discolor