Rhododendron Species


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R. maximum

SubgenusHymenanthes
SectionPontica
SubsectionPonticaClick to see all Pontica
Synonyms
R. ashleyi   (Coker
William Chambers Coker
(1872-1953)
Hartsville, South Carolina, USA
Botanical-short: Coker
)
R. fragrans
R. latifolium   (Hoffmanns
Johan Centurius von Hoffmannsegg
(1766-1849)
Germany, Dresded
Botanical-short: Hoffmanns
)
R. maximum var album
R. maximum var purpureum   (Pursh
Frederick Traugott Pursh
(1774-1820)
Grossenhain, Saxony, Germany
Botanical-short: Pursh
)
R. procerum   (Salisb.
Richard Anthony Salisbury
(1761-1829)
Leeds, England
Botanical-short: Salisb.
)
R. purpureum   (Pursh
Frederick Traugott Pursh
(1774-1820)
Grossenhain, Saxony, Germany
Botanical-short: Pursh
)
R. purshii   (G.Don
George Don
(1798-1856)
Scotland, Forfarshire
Botanical-short: G.Don
)
In cultivation since: 1763

First described: 1753, (L.
Carolus Linnaeus
(1707-1778)
Råshult, Älmhult, Sweden
Botanical-short: L.
)

Origin: E. North America, Georgia to Nova Scotia 0-900 meter

Corolla: campanulate
Leaves: ovate-lanceolate

Habit: terrestrial
epiphytic = living on dead organic material (decaying trees f.i)
terrestrial = in soil (like in your garden)

Winter: evergreen
Bloomtime: 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)


Predominant color: white

Height
Height
The figures listed here are the observed size in the natural environment.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
: 300 cm. (10ft.)

Registered
In 'Your Garden' you can administrate
your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 60
R. maximum per country:
(could be a clue for heat/cold-tolerance)

Finland : 22
Canada : 13
Netherlands : 11
United States : 11
England : 1
France : 1
Norway : 1

Common names
Great Laurel
Great Rhododendron
Rosebay


Natural Hybrids
hybridum =(maximum x viscosum)

Clones / selections
'Album', 1826, Whitley & Osborn, ,
'Ashleyi', unknown, ,
'Great Laurel', unknown, ,
'Harkness', unknown, ,
'Independence', unknown, ,
'Leachii', unknown, ,
'Little's Enchanting Shells', 1990, Little, P.L., Piping Tree Gardens, Beaverdam, Virgina, USA
'Marginatum', 1868, Leroy, A., Angers, France
'Mount Mitchell', unknown, ,
'Nassau Red', unknown, ,
'Rosebay', unknown, ,
'Summertime', 1974, Crown Estate Commissioners, Windsor, Berkshire, England


Send questions, information or pictures

Rhododendron maximum
Photo byCoen Zonneveld
Date07 July, 2002
LocationPrivate garden, Diepenveen, Netherlands
See high-resolution version
Rhododendron maximum
maximum red form aka 'Red Max'
Photo byJens Birck
Date30 September, 2007
LocationBoulderwood, Nova Scotia, Canada
See high-resolution version
Rhododendron maximum
Photo byCoen Zonneveld
Date21 June, 2009
LocationPrivate garden, Diepenveen, Netherlands



maximum 'Leachii'
Rhododendron maximum
pronounced curly foliage
Photo byPeter Norris
Date13 July, 2013
LocationPrivate garden on Martha’s Vineyard, MA USA z7
See high-resolution version
maximum 'Summertime'
Rhododendron maximum
Photo byEverard Daniel
DateJuly, 2004
Location
See high-resolution version
maximum 'Independence'
Rhododendron maximum
Photo byPeter Norris
Date
LocationPrivate garden on Martha’s Vineyard, MA USA z7
See high-resolution version

Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. maximum is directly involved:     show indirect inv.
'Adele's Pink', 1961, Fetterhoff, W.M., Gibsonia, Pennsylvania, USAR. maximum x ?
'Adele's Yellow', 1964, Fetterhoff, W.M., Gibsonia, Pennsylvania, USAR. maximum x R. wardii var wardii
'Alandale', 1938, Nearing, G.G., Ramsey, NJ, USAR. maximum x R. fortunei ssp discolor
'Alarm' (photoClick to see more information


Alarm
), 1860, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
R. maximum x ?
'Albert Close' (photoClick to see more information


Albert Close
), 1944, Fraser, G., Vancouver Island, BC, Canada
R. maximum x 'Mrs Jamie Fraser'
'Alumni Day', 1958, Nearing, G.G., Ramsey, NJ, USAR. maximum x R. fortunei ssp discolor
'Angel Glow', unknown, , R. maximum x R. degronianum ssp yakushimanum 'Koichiro Wada'
'Arctic Snow' (photoClick to see more information


Arctic Snow
), 1973, Behring, R., St. Catharines, Ontario, Canada
R. maximum x R. brachycarpum ssp tigerstedtii
'aureum x maximum', No hybridiser registered, , R. aureum var aureum x R. maximum
'Baccalaureate', 1972, Gable, J.B., Stewartstown, Pennsylvania, USAR. maximum x R. fortunei ssp discolor
'Burgemeester Aarts', 1915, Aarts, , NetherlandsR. maximum x 'Ludwig Leopold Liebig'
'Cool Trend', 1986, Ring, T.L., Bellaire, Ohio, USAR. maximum x 'Buttermint'
'Delp's Fireking', 1986, Delp Weldon E., Harrisville, Pensylvania, USAR. maximum x 'Gertrud Schäle Group'
'Delp's Snowball', 1995, Delp Weldon E., Harrisville, Pensylvania, USAR. aureum var aureum x R. maximum
'Doctor Denis Percell', 1971, Goodrich, J.M. (Jane) & Ray, Vienna, Virginia, USAR. maximum x 'Leo Group'
'Dona Maria', 1855, de Clerck d'Olsene, , R. ponticum x R. maximum
'Edith', 1978, Pride, O.S., Butler, Pennsylvania, USAR. maximum x ?
'Edith Pride' (photoClick to see more information


Edith Pride
), 1958, Pride, O.S., Butler, Pennsylvania, USA
'English Roseum' x R. maximum
'Eileen', 1920, Waterer (Bagshot), Surrey, EnglandR. maximum x ?
'Elizabeth Scholtz', 1962, Smith, W.D., Spring Grove, Pennsylvania, USAR. maximum x ?
'Florence Rinehimer', 1971, Smith, W.D., Spring Grove, Pennsylvania, USAR. maximum x ?
'Folcroft', 1958, Scott Arboretum, , R. maximum x 'maximum x fortunei'
'Fresh Heir', Delp Weldon E., Harrisville, Pensylvania, USAR. maximum x R. thomsonii ssp thomsonii
'Ghost', 1974, Delp Weldon E., Harrisville, Pensylvania, USA'maximum x yakushimanum' x R. maximum
'Golly Gee', 1977, Ring, T.L., Bellaire, Ohio, USA'Donna Hardgrove' x R. maximum
'Halopeanum' (photoClick to see more information


Halopeanum
), 1896, Halopé, F, ,
R. griffithianum x R. maximum
'Harold Amateis' (photoClick to see more information


Harold Amateis
), 1967, Amateis, Edmond, Brewster, New York, USA
R. maximum x R. strigillosum
'Helen Ring', 1968, Kehr, A.E., Hendersonville, North Carolina, USAR. maximum x R. arboreum ssp arboreum
'Hybridum Group', 1817, Herbert, Honourable & Reverend W., Wetherby, Yorkshire, EnglandR. viscosum x R. maximum
'Hypermax' (photoClick to see more information


Hypermax
), 1999, Delp Weldon E., Harrisville, Pensylvania, USA
R. hyperythrum x R. maximum
'Ice Baby', 1974, Delp Weldon E., Harrisville, Pensylvania, USAR. maximum x R. brachycarpum ssp tigerstedtii
'Ignescens', 1932, Rogers, W.H. & Son, , R. arboreum ssp arboreum x R. maximum
'Independence Day' (photoClick to see more information


Independence Day
), 1915, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
R. maximum x ?
'Jason's Maxim', 1927, Bowers, C.G., , R. maximum x ?
'Jean Leppo', 1969, Smith, W.D., Spring Grove, Pennsylvania, USAR. catawbiense x R. maximum
'Jingle Jungle', 1984, Fetterhoff, W.M., Gibsonia, Pennsylvania, USAR. maximum x 'Jingle Bells'
'Judy Spillane' (photoClick to see more information


Judy Spillane
), 1958, Wister, J.C., Swarthmore, PA, USA
R. maximum x 'Janet Blair'
'July Possibility', 1953, Scott Arboretum, , R. maximum x 'Ponticum Roseum'
'June Achievement' (photoClick to see more information


June Achievement
), 1953, Wister, J.C., Swarthmore, PA, USA
R. maximum x R. fortunei ssp discolor
'June Magic', 1953, Scott Arboretum, , R. maximum x R. fortunei ssp discolor
'June Maid' (photoClick to see more information


June Maid
), 1953, Wister, J.C., Swarthmore, PA, USA
R. maximum x R. fortunei ssp discolor
'Lady Annette de Trafford' (photoClick to see more information


Lady Annette de Trafford
), 1874, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
R. maximum x ?
'Lady Clementine Mitford' (photoClick to see more information


Lady Clementine Mitford
), 1870, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
R. maximum x ?
'Lady Eleanor Cathcart' (photoClick to see more information


Lady Eleanor Cathcart
), 1850, Waterer John, Sons & Crisp, Bagshot, Surrey, UK
R. maximum x R. arboreum ssp arboreum
'Late Arrival', 1953, Scott Arboretum, , R. maximum x 'C.S. Sargent'
'Late Beginning', 1953, Scott Arboretum, , R. maximum x 'C.S. Sargent'
'Mademoiselle Marie van Houtte' (photoClick to see more information


Mademoiselle Marie van Houtte
), 1879, Van Houtte, L. B. (Louis Benoit), Gentbrugge, Belgium
R. maximum x ?
'Marchioness of Lansdowne' (photoClick to see more information


Marchioness of Lansdowne
), 1879, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK
R. maximum x ?
'Maxecat' (photoClick to see more information


Maxecat
), 1945, Gable, J.B., Stewartstown, Pennsylvania, USA
R. maximum x R. catawbiense
'maximum x calophytum' (photoClick to see more information


maximum x calophytum
), Kehr, A.E., Hendersonville, North Carolina, USA
R. maximum x R. calophytum var calophytum
'maximum x catawbiense', No hybridiser registered, , R. maximum x R. catawbiense
'maximum x fortunei', No hybridiser registered, , R. maximum x R. fortunei ssp fortunei
'maximum x Goldsworth Orange', No hybridiser registered, , R. maximum x 'Goldsworth Orange'
'maximum x haematodes', unknown, , R. maximum x R. haematodes ssp haematodes
'maximum x Honeymoon', No hybridiser registered, , R. maximum x 'Honeymoon'
'maximum x ponticum', No hybridiser registered, , R. maximum x R. ponticum
'maximum x thomsonii', No hybridiser registered, , R. maximum x R. thomsonii ssp thomsonii
'maximum x vernicosum', No hybridiser registered, , R. maximum x R. vernicosum
'maximum x yakushimanum', No hybridiser registered, , R. maximum x R. degronianum ssp yakushimanum
'Midsummer' (photoClick to see more information


Midsummer
), 1938, Waterer (Bagshot), Surrey, England
R. maximum x ?
'Mountain Marriage', 1964, Kehr, A.E., Hendersonville, North Carolina, USAR. maximum x R. degronianum ssp yakushimanum
'Mrs Jo Pavlick', 1963, Fetterhoff, W.M., Gibsonia, Pennsylvania, USAR. maximum x 'Kettledrum'
'Mrs John Clutton', 1865, Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UKR. maximum x ?
'Mrs Sam' (photoClick to see more information


Mrs Sam
), unknown, ,
R. catawbiense x R. maximum
'Othello', 1847, Standish & Noble, Bagshot, Surrey, EnglandR. maximum x ?
'Paul Vossberg', 1975, Knippenberg, Mrs. J. F., , R. maximum x R. thomsonii ssp thomsonii
'Piety', 1972, No hybridiser registered, , R. maximum x 'Mary Garrison'
'Ponticum Roseum' (photoClick to see more information


Ponticum Roseum
), 1958, Pride, O.S., Butler, Pennsylvania, USA
R. ponticum x R. maximum
'ponticum x maximum', No hybridiser registered, , R. ponticum x R. maximum
'Powerhouse' (photoClick to see more information


Powerhouse
), 1974, Delp Weldon E., Harrisville, Pensylvania, USA
'America x Doctor V.H. Rutgers' x R. maximum
'Prince Camille de Rohan' (photoClick to see more information


Prince Camille de Rohan
), 1854, Waelbrouck, ,
R. maximum x ?
'Prizewinner', 1974, Delp Weldon E., Harrisville, Pensylvania, USAR. maximum x 'Brookville x Mary Garrison'
'Queen Victoria', 1850, Standish & Noble, Bagshot, Surrey, EnglandR. maximum x 'Altaclerense Group'
'Russell Harmon' (photoClick to see more information


Russell Harmon
), 1950, Harmon, R., ,
R. catawbiense x R. maximum
'Seven Up', 1995, Delp Weldon E., Harrisville, Pensylvania, USAR. aureum var aureum x R. maximum
'Stokes Bronze Wings', 1943, Stokes, W.E., , R. maximum x R. catawbiense
'Summer Snow' (photoClick to see more information


Summer Snow
), 1969, Leach, Dr. David G., North Madison, Ohio, USA
R. maximum x 'ungernii x auriculatum'
'Summer Summit' (photoClick to see more information


Summer Summit
), 1958, Leach, Dr. David G., North Madison, Ohio, USA
R. maximum x 'auriculatum x fortunei discolor'
'Susan Kay', 1964, Fetterhoff, W.M., Gibsonia, Pennsylvania, USAR. maximum x R. wardii var wardii
'Tangy', 1974, Delp Weldon E., Harrisville, Pensylvania, USAR. maximum x ?
'Whizette', 1992, Delp Weldon E., Harrisville, Pensylvania, USA'Princess Elizabeth' x R. maximum
'yakushimanum x maximum', No hybridiser registered, , R. degronianum ssp yakushimanum x R. maximum


Indirect involvement of R. maximum in cultivars: (cultivar = direct child/cultivar of maximum)
'maximum x yakushimanum X Adele's Yellow', No hybridiser registered, , 'maximum x yakushimanum' x 'Adele's Yellow'
'Stokes Bronze Wings x Adele's Yellow', No hybridiser registered, , 'Stokes Bronze Wings' x 'Adele's Yellow'
'Teacher's Pet', 1977, Delp Weldon E., Harrisville, Pensylvania, USA'Stokes Bronze Wings' x 'Adele's Yellow'
'Good Fortune', 1958, Scott Arboretum, , 'Alandale' x
'Good Luck', 1958, Scott Arboretum, , 'Alandale' x
'Niantic', 1962, Scott Arboretum, , 'Alandale' x 'Mrs Charles S Sargent'
'Pacesetter', 1962, Scott Arboretum, , 'Alandale' x 'Lady of Belfield'
'Summer Jewel' (photoClick to see more information


Summer Jewel
), 1953, Swarthmore College, ,
'Alandale' x R. fortunei ssp discolor
'Snow Shimmer' (photoClick to see more information


Snow Shimmer
), 1958, Wister, J.C., Swarthmore, PA, USA
R. fortunei ssp discolor x 'Alumni Day'
'Candescent', Delp Weldon E., Harrisville, Pensylvania, USA'aureum x maximum' x 'Dead Ringer'
'Delp's White Dove', 1992, Delp Weldon E., Harrisville, Pensylvania, USA'aureum x maximum' x 'Catalgla'
'Masterblend', 1983, Delp Weldon E., Harrisville, Pensylvania, USA'maximum x vernicosum' x 'aureum x maximum'
'Yellstar', 1995, Delp Weldon E., Harrisville, Pensylvania, USA'brachycarpum ssp tigerstedtii x Donna Hardgrove' x 'aureum x maximum'
'Delp's Campfire' (photoClick to see more information


Delp's Campfire
), 1992, Delp Weldon E., Harrisville, Pensylvania, USA
'Delp's Fireking' x 'Snapper'
'Icy Hot', 1992, Delp Weldon E., Harrisville, Pensylvania, USA'Delp's Fireking' x 'Sharpie'
'Razor's Edge', 1995, Delp Weldon E., Harrisville, Pensylvania, USA'Wizard' x 'Delp's Fireking'
'Ghost Bomber', 1998, Anderson A.T. & S.A, , 'Ghost' x 'Red Bomber'
'Admiral Piet Hein' (photoClick to see more information


Admiral Piet Hein
), 1925, Van Nes, C.B., ,
'Sir Charles Butler' x 'Halopeanum'
'Adrien Le Fur', 1996, Saint-Jalm, J.F., , 'Halopeanum' x 'Coronation Day'
'Beau Vallon', 2003, Saint-Jalm, J.F., , 'Halopeanum' x 'September Song'
'Leonardslee Brilliant', 1920, Loder, Sir Edmund, Horsham, Sussex, England'Halopeanum' x R. thomsonii ssp thomsonii
'Leonardslee Cream', 1920, Loder, Sir Edmund, Horsham, Sussex, England'Halopeanum' x 'Loderi Pink Diamond'
'Leonardslee Gertrude', 1920, Loder, Sir Edmund, Horsham, Sussex, England'Halopeanum' x 'Loderi Pink Diamond'
'Mrs A.T. de la Mare' (photoClick to see more information


Mrs A.T. de la Mare
), 1958, Van Nes, C.B., ,
'Sir Charles Butler' x 'Halopeanum'
'Penn-ar-Bed' (photoClick to see more information


Penn-ar-Bed
), 2003, Le Duigou, L., ,
'Halopeanum' x 'Fred Wynniatt'
'Pink Bride', 1921, Loder, Sir Edmund, Horsham, Sussex, England'Halopeanum' x R. griffithianum
'Snow Queen' (photoClick to see more information


Snow Queen
), 1946, Loder, Sir Edmund, Horsham, Sussex, England
'Halopeanum' x 'Loderi Group'
'Van Nes Sensation' (photoClick to see more information


Van Nes Sensation
), 1928, van Nes C. B . & Sons, Boskoop, Netherlands
'Sir Charles Butler' x 'Halopeanum'
'Early Winters' (photoClick to see more information


Early Winters
), 1999, Barlup, Jim, Bellevue, USA
'Independence Day' x 'Snow Candle'
'First Impression' (photoClick to see more information


First Impression
), 1994, Barlup, Jim, Bellevue, USA
'Independence Day' x 'Mrs Furnivall'
'Maris' (photoClick to see more information


Maris
), 1998, Barlup, Jim, Bellevue, USA
'Independence Day' x 'Elegant Touch'
'Rosewine' (photoClick to see more information


Rosewine
), 1994, Barlup, Jim, Bellevue, USA
'Independence Day' x 'Plum High'
'Your Move' (photoClick to see more information


Your Move
), 2014, Barlup, Jim, Bellevue, USA
'Independence Day' x 'Snow Candle'
'Fidelius' (photoClick to see more information


Fidelius
), 1986, Hachmann, Hans, Barmstedt in Holstein, Germany
'Judy Spillane' x 'Erato'
'Jan Kamholtz', 1965, Shapiro, B. & M., , 'Lady Annette de Trafford' x 'Disca'
'Lady Fair', 1965, Shapiro, B. & M., , 'Lady Annette de Trafford' x 'Disca'
'Happy Day', 1971, Lyons, M.W., Eugene, Oregon, USA'Lady Clementine Mitford' x 'Ladybird Group'
'Ladifor', 1958, Nearing, G.G., Ramsey, NJ, USA'Lady Clementine Mitford' x R. fortunei ssp fortunei
'Saltwood', 1965, Hardy, Maj. A.E., Hythe, Kent, UKR. griersonianum x 'Lady Clementine Mitford'
'Lady Decora' (photoClick to see more information


Lady Decora
), 1943, Dexter, C.O., Sandwich, MA, USA
'Lady Eleanor Cathcart' x R. decorum ssp decorum
'Lady Longman', 1929, White, H., Sunningdale, UK'Cynthia' x 'Lady Eleanor Cathcart'
'Lady of Belfield', 1943, Dexter, C.O., Sandwich, MA, USA'Lady Eleanor Cathcart' x R. decorum ssp decorum
'Lady of June' (photoClick to see more information


Lady of June
), 1943, Dexter, C.O., Sandwich, MA, USA
'Lady Eleanor Cathcart' x R. decorum ssp decorum
'Lady of Vernon', 1943, Dexter, C.O., Sandwich, MA, USA'Lady Eleanor Cathcart' x R. decorum ssp decorum
'Lady of Wakefield', 1943, Dexter, C.O., Sandwich, MA, USA'Lady Eleanor Cathcart' x R. decorum ssp decorum
'Abe Arnott' (photoClick to see more information


Abe Arnott
), 1974, Weber, Edwin O., Seattle, Washington, USA
'Marchioness of Lansdowne' x 'Lee's Dark Purple'
'Grand Sight', 1996, Holmsomback, O., , R. fortunei ssp fortunei x 'Maxecat'
'Tahiti', 1953, Leach, Dr. David G., North Madison, Ohio, USA'maximum x catawbiense' x 'dichroanthum X fortunei ssp discolor x campylocarpum'
'Folcroft', 1958, Scott Arboretum, , R. maximum x 'maximum x fortunei'
'High Regard', 1958, Scott Arboretum, , R. fortunei ssp discolor x 'maximum x fortunei'
'Hindustan', 1967, Leach, Dr. David G., North Madison, Ohio, USA'maximum x Goldsworth Orange' x 'America x Gertrud Schäle Group'
'maximum x Goldsworth Orange X America x Gertrud Schäle Group', No hybridiser registered, , 'maximum x Goldsworth Orange' x 'America x Gertrud Schäle Group'
'W.H. Ebaugh' (photoClick to see more information


W.H. Ebaugh
), Gable, J.B., Stewartstown, Pennsylvania, USA
'maximum x haematodes' x 'Caroline'
'Cool Colors', 1995, Delp Weldon E., Harrisville, Pensylvania, USA'Brachy Crest' x 'maximum x Honeymoon'
'Raeanum', 1848, Standish & Noble, Bagshot, Surrey, England'maximum x ponticum' x 'Altaclerense Group'
'Vivid', 1850, Standish & Noble, Bagshot, Surrey, England'maximum x ponticum' x 'Altaclerense Group'
'maximum x thomsonii X fortunei x haematodes', No hybridiser registered, , 'maximum x thomsonii' x 'fortunei x haematodes'
'Masterblend', 1983, Delp Weldon E., Harrisville, Pensylvania, USA'maximum x vernicosum' x 'aureum x maximum'
'Ghost', 1974, Delp Weldon E., Harrisville, Pensylvania, USA'maximum x yakushimanum' x R. maximum
'maximum x yakushimanum X Adele's Yellow', No hybridiser registered, , 'maximum x yakushimanum' x 'Adele's Yellow'
'Color Me Pink', 1974, Delp Weldon E., Harrisville, Pensylvania, USA'Midsummer' x 'Delp's Red Max'
'Crystal Glo' (photoClick to see more information


Crystal Glo
), 1977, Delp Weldon E., Harrisville, Pensylvania, USA
'Midsummer' x 'Delp's Red Max'
'Delp's Vanity Fair', 1992, Delp Weldon E., Harrisville, Pensylvania, USA'Midsummer' x 'Old Copper'
'Doorbuster', 1977, Delp Weldon E., Harrisville, Pensylvania, USA'Midsummer' x 'Delp's Red Max'
'Great Genes', 1988, Delp Weldon E., Harrisville, Pensylvania, USA'Ruddy Red Max' x 'Midsummer'
'Upbeat', 1977, Delp Weldon E., Harrisville, Pensylvania, USA'Midsummer' x 'Delp's Red Max'
'Martha Player' (photoClick to see more information


Martha Player
), 1998, Player, L. M., Fayetteville, North Carolina, USA
R. hyperythrum x 'Mrs Sam'
'Fairmont Lodge' (photoClick to see more information


Fairmont Lodge
), 1953, Higginbothom, J.R., ,
'Ponticum Roseum' x 'H.W. Sargent'
'Fairmont Pride', 1953, Higginbothom, J.R., , 'Ponticum Roseum' x 'H.W. Sargent'
'July Possibility', 1953, Scott Arboretum, , R. maximum x 'Ponticum Roseum'
'Broughtonii Aureum' (photo), 1845, Smith, W. (gardener Earl of Liverpool), Kingston-upon-Thames, Surrey, England'ponticum x maximum' x R. molle ssp molle
'Smithii Aureum' (photo), 1830, Smith, W. (gardener Earl of Liverpool), Kingston-upon-Thames, Surrey, England'ponticum x maximum' x R. molle ssp molle
'Edouard Andre', 1892, van der Meulen, G., , 'Prince Camille de Rohan' x R. molle ssp molle
'Blondie', 1970, Leach, Dr. David G., North Madison, Ohio, USA'Nereid Group x fortunei ssp discolor' x 'Russell Harmon'
'Russell Harmon x Goldsworth Orange', No hybridiser registered, , 'Russell Harmon' x 'Goldsworth Orange'
'Serenata', Leach, Dr. David G., North Madison, Ohio, USA'Russell Harmon' x
'Spellbinder' (photoClick to see more information


Spellbinder
), 1955, Leach, Dr. David G., North Madison, Ohio, USA
'Russell Harmon' x 'calophytum x sutchuense'
'Fit and Trim' (photoClick to see more information


Fit and Trim
), Delp Weldon E., Harrisville, Pensylvania, USA
'Stokes Bronze Wings' x 'Tony's Gift x Serenata'
'Googly Eyed', 1992, Looye, Jack, Niagara on the Lake, Ontario, Canada'Mrs T H Lowinsky' x 'Stokes Bronze Wings'
'Jazzberry Twirl', 1989, Smith, A.W., Niagara Falls, Ontario, Canada'Stokes Bronze Wings' x 'Vinebrook'
'Skeeter Hill', 1978, Delp Weldon E., Harrisville, Pensylvania, USA'brachycarpum x Crest' x 'Stokes Bronze Wings'
'Sky Wings', 1989, Smith, A.W., Niagara Falls, Ontario, Canada'Mrs T H Lowinsky' x 'Stokes Bronze Wings'
'Snazzy', Looye, Jack, Niagara on the Lake, Ontario, Canada'Wizard' x 'Stokes Bronze Wings'
'Stokes Bronze Wings x Adele's Yellow', No hybridiser registered, , 'Stokes Bronze Wings' x 'Adele's Yellow'
'Teacher's Pet', 1977, Delp Weldon E., Harrisville, Pensylvania, USA'Stokes Bronze Wings' x 'Adele's Yellow'
'Summer Glow' (photoClick to see more information


Summer Glow
), 1971, Leach, Dr. David G., North Madison, Ohio, USA
'Summer Snow' x 'Scarlet Blast'
'Summer Solace', 1968, Leach, Dr. David G., North Madison, Ohio, USA'Summer Snow' x 'Catalgla'
'Summer Splendor', 1968, Leach, Dr. David G., North Madison, Ohio, USA'Summer Snow' x 'Party Pink'
'Jet Stream', 1985, Delp Weldon E., Harrisville, Pensylvania, USA'Ruddy Red Max' x 'yakushimanum x maximum'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009