Rhododendron Species


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R. laetum

SubgenusRhododendron
SectionVireya
SubsectionEuvireyaClick to see all Euvireya
Synonyms
R. uliginosum
In cultivation since: ?

First described:

Origin:

Corolla: unknown
Leaves: unknown

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

Winter: evergreen
Bloomtime: unknown
Hardiness:
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: ????

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
: ?

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

To try/see this go 'Home' (top-right).
on hirstum.info: 3
R. laetum per country:
(could be a clue for heat/cold-tolerance)

New Zealand : 2
Netherlands : 1




Send questions, information or pictures

Rhododendron laetum
Photo byGarth Wedemire
Date07 April, 2007
LocationRhododendron Species Botanical Garden, Federal Way, Washington, USA
See high-resolution version
Rhododendron laetum
Photo byNursery azaleatuin.be
Date
LocationKruishoutem, Belgium




Parentage according the IRRC of the Royal Horticultural Society
Hybrids / cultivars where R. laetum is directly involved:     show indirect inv.
'Aida's March', 1989, Snell, G.L.S., Vireya Venue, Maleny, Queensland, AustraliaR. laetum x R. zoelleri
'Auburn Beauty', unknown, , R. laetum x R. christianae 'Sunset'
'Autumn Berry Wine', unknown, , 'konori x laetum X commonae' x R. laetum
'Blonde Bombshell' (photo), unknown, , R. laetum x 'Sweet Wendy'
'Blonde Venus', unknown, , 'Sweet Wendy' x R. laetum
'Bold Janus' (photo), unknown, , R. leucogigas x R. laetum
'Bright Lights', unknown, , R. laetum x R. zoelleri
'Cameo Spice', unknown, , R. laetum x R. konori var konori
'Cape Cod Sunshine', 1985, Hunnewell, , R. aurigeranum ssp aurigeranum x R. laetum
'Carillon Bells' (photo), Withers, R.M., , R. gracilentum x R. laetum
'Choc Orange', 1989, Snell, G.L.S., Vireya Venue, Maleny, Queensland, AustraliaR. laetum x 'Sweet Wendy'
'christianae x laetum', No hybridiser registered, , R. christianae x R. laetum
'Christopher Borch', unknown, , R. laetum x R. jasminiflorum ssp jasminiflorum
'Clare Rouse', 1979, Stanton, D.B., Wollongong, New South Wales, AustraliaR. christianae x R. laetum
'Concerto for Brass', unknown, , R. viriosum x R. laetum
'Coral Flare' (photo), 1977, Stanton, D.B., Wollongong, New South Wales, AustraliaR. lochiae x R. laetum
'Doctor Hermann Sleumer x laetum', No hybridiser registered, , 'Doctor Hermann Sleumer' x R. laetum
'Esprit-de-Joie', 1980, Rouse, J.L., Toorak, Victoria, AustraliaR. konori var konori x R. laetum
'Finnegan's Rainbow' (photo), 1983, Snell, G.L.S., Vireya Venue, Maleny, Queensland, AustraliaR. laetum x R. zoelleri
'Flaming Ball', unknown, , R. laetum x R. javanicum ssp javanicum
'Gardenia Odyssey x laetum', No hybridiser registered, , 'Gardenia Odyssey' x R. laetum
'George Budgen' (photo), 1966, Lelliott, T., Boronia, Victoria, AustraliaR. laetum x R. zoelleri
'Gilded Sunrise' (photo), Lelliott, T., Boronia, Victoria, AustraliaR. aurigeranum ssp aurigeranum x R. laetum
'Glen Borch', 1970, Lelliott, T., Boronia, Victoria, Australia'Doctor Hermann Sleumer' x R. laetum
'Golden Casket', unknown, , R. sessilifolium x R. laetum
'Golden Glory', unknown, , R. laetum x R. aurigeranum ssp aurigeranum
'Golden Prolific', unknown, , 'macgregoriae x laetum' x R. laetum
'Gossamer White' (photo), 1984, Snell, G.L.S., Vireya Venue, Maleny, Queensland, AustraliaR. loranthiflorum ssp loranthiflorum x R. laetum
'Hansa Bay', 1980, Schick, P., , R. laetum x R. zoelleri 'Golden Gate'
'herzogii x laetum', No hybridiser registered, , R. herzogii x R. laetum
'Java Light', 1981, Stanton, D.B., Wollongong, New South Wales, AustraliaR. laetum x R. javanicum ssp javanicum
'Jungle Beauty', unknown, , R. laetum x R. javanicum ssp javanicum
'Kerrigan', unknown, , R. laetum x 'Souvenir de J.H. Mangles'
'konori x laetum', No hybridiser registered, , R. konori var konori x R. laetum
'laetum x aurigeranum', No hybridiser registered, , R. laetum x R. aurigeranum ssp aurigeranum
'laetum x Doctor Hermann Sleumer', No hybridiser registered, , R. laetum x 'Doctor Hermann Sleumer'
'laetum x Golden Gate', No hybridiser registered, , R. laetum x R. zoelleri 'Golden Gate'
'laetum x gracilentum', No hybridiser registered, , R. laetum x R. gracilentum
'laetum x konori var phaeoplepum', No hybridiser registered, , R. laetum x R. konori var phaeopeplum
'laetum x leucogigas', No hybridiser registered, , R. laetum x R. leucogigas
'laetum x macgregoriae', No hybridiser registered, , R. laetum x R. macgregoriae
'laetum X macgregoriae x aurigeranum', No hybridiser registered, , R. laetum x 'macgregoriae x aurigeranum'
'laetum X viriosum x macgregoriae', No hybridiser registered, , R. laetum x 'viriosum x macgregoriae'
'laetum x zoelleri', No hybridiser registered, , R. laetum x R. zoelleri
'laetum X zoelleri x polyanthemum', No hybridiser registered, , R. laetum x 'zoelleri x polyanthemum'
'Lake Amaru', 1985, Sorensen-Smith, L., , R. konori var konori x R. laetum
'leucogigas x laetum', No hybridiser registered, , R. leucogigas x R. laetum
'Lolly Willows', unknown, , R. konori var konori x R. laetum
'Lucifer's Blush', unknown, , R. laetum x ?
'macgregoriae x laetum', No hybridiser registered, , R. macgregoriae x R. laetum
'Pacific Moonrise', 1990, Rouse, J.L., Toorak, Victoria, AustraliaR. sessilifolium x R. laetum
'Patrizia Del Roma', unknown, , 'konori var phaeopeplum x viriosum X leucogigas' x R. laetum
'Penglow', 1983, Clyde Smith, J., , R. laetum x R. javanicum ssp javanicum
'Richard Marques', unknown, , 'zoelleri x leucogigas' x R. laetum
'Scarlet Beauty', 1978, Stanton, D.B., Wollongong, New South Wales, AustraliaR. laetum x 'Triumphans'
'Shantung Pink', unknown, , 'konori var phaeopeplum x viriosum X leucogigas' x R. laetum
'Shantung Rose', unknown, , 'konori var phaeopeplum x viriosum X leucogigas' x R. laetum
'Simbu Sunset', 1984, Lelliott, T., Boronia, Victoria, AustraliaR. laetum x R. zoelleri
'Super Duper' (photo), unknown, , R. laetum x ?
'Sweet Wendy', 1978, Withers, R.M., , R. laetum x R. konori var phaeopeplum
'Teddy's Best', unknown, , R. laetum x 'Gardenia Odyssey'
'Tinkerbell's Flight', unknown, , R. loranthiflorum ssp loranthiflorum x R. laetum
'Tropic Glow' (photo), unknown, , R. laetum x R. zoelleri
'Tropic Tango', unknown, , 'Princess Alexandra' x R. laetum
'viriosum x laetum', No hybridiser registered, , R. viriosum x R. laetum
'Vladimir Bukovsky' (photo), 1968, Lelliott, T., Boronia, Victoria, AustraliaR. laetum x 'Souvenir de J.H. Mangles'
'Wattle Bird' (photo), unknown, , R. laetum x R. aurigeranum ssp aurigeranum
'Weston Glow', unknown, , 'javanicum x viriosum' x R. laetum


Indirect involvement of R. laetum in cultivars: (cultivar = direct child/cultivar of laetum)
'Larissa', unknown, , 'Cameo Spice' x 'Rob's Favourite'
'Susan Jane', unknown, , 'Cameo Spice' x R. hellwigii
'Citron Bells', unknown, , 'Carillon Bells' x 'laetum x macgregoriae'
'Janelle Marie', 1978, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'Carillon Bells' x R. gracilentum
'Juan Diego', unknown, , 'Carillon Bells' x R. leptanthum
'Lana's Gold', 1989, Schick, P., , 'christianae x laetum' x 'laetum x Golden Gate'
'Kesumba', 1990, Lelliott, T., Boronia, Victoria, AustraliaR. konori var konori x 'Doctor Hermann Sleumer x laetum'
'Golden Retriever Mandy', 2001, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'Gardenia Odyssey x laetum' x 'Gardenia Odyssey x laetum'
'Yellow Bunny', 1988, Blumhardt, O. S., Koromiko Nurseries, Whangarei, New Zealand'Golden Prolific' x R. commonae
'Mary Buchanan', unknown, , 'herzogii x laetum' x R. aurigeranum ssp aurigeranum
'Anastasia', 1974, Strybing Arboretum, , R. wrightianum var wrightianum x 'konori x laetum'
'Clare Elsie' (photo), 1993, Sullivan, P., , R. leucogigas x 'konori x laetum'
'Cyril', unknown, , R. leucogigas x 'konori x laetum'
'konori x laetum X commonae', No hybridiser registered, , 'konori x laetum' x R. commonae
'Lake Toba', 1996, Sorensen-Smith, L., , 'konori x laetum' x R. aequabile
'Ruby Bells', unknown, , 'konori x laetum' x R. commonae
'Thirtieth of June', unknown, , R. leucogigas x 'konori x laetum'
'African Queen', 1988, Clancy, B., , 'Doctor Hermann Sleumer' x 'laetum x aurigeranum'
'Green with Envy', 1991, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'Gardenia Odyssey' x 'laetum x aurigeranum'
'Highland Arabesque' (photo), 1983, Rouse, J.L., Toorak, Victoria, AustraliaR. orbiculatum x 'laetum x aurigeranum'
'Little Rosie', unknown, , 'laetum x aurigeranum' x R. rubineiflorum
'Sonny Boy', unknown, , R. zoelleri x 'laetum x aurigeranum'
'Star Shower', unknown, , 'laetum x aurigeranum' x R. retusum var retusum
'Sweet Amanda', 1988, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'Doctor Hermann Sleumer x herzogii' x 'laetum x aurigeranum'
'Kay Catchlove', unknown, , 'laetum x Doctor Hermann Sleumer' x 'aurigeranum x Doctor Herman Sleumer'
'Melbourne Cup' (photo), unknown, , 'laetum x Doctor Hermann Sleumer' x 'aurigeranum x Doctor Herman Sleumer'
'Anatta Gold' (photo), unknown, , 'laetum x Golden Gate' x 'zoelleri x leucogigas'
'Cakes and Ale', 1987, Schick, P., , 'laetum x Golden Gate' x 'zoelleri x leucogigas'
'Lana's Gold', 1989, Schick, P., , 'christianae x laetum' x 'laetum x Golden Gate'
'Sunset Fantasy', unknown, , 'laetum x Golden Gate' x 'zoelleri x leucogigas'
'Lemon Minuet' (photo), 1983, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'laetum x gracilentum' x R. gracilentum
'Gertrude', unknown, , 'laetum x leucogigas' x R. konori var konori
'Jean Baptiste', 1972, Sullivan, P., , 'laetum x leucogigas' x R. konori var phaeopeplum
'laetum x leucogigas X konori var phaeopeplum', No hybridiser registered, , 'laetum x leucogigas' x R. konori var phaeopeplum
'leucogicas X laetum x leucogigas', No hybridiser registered, , R. leucogigas x 'laetum x leucogigas'
'Saint Gertrude', 1973, Sullivan, P., , 'laetum x leucogigas' x R. konori var konori
'Semper Fidelis', unknown, , 'laetum x leucogigas' x R. konori var konori
'Stella Maris', unknown, , 'laetum x leucogigas' x R. konori var phaeopeplum
'Channon Marie', unknown, , 'laetum x macgregoriae' x R. zoelleri
'Citron Bells', unknown, , 'Carillon Bells' x 'laetum x macgregoriae'
'Chumash Brave', unknown, , 'laetum X macgregoriae x aurigeranum' x 'intranervatum x aurigerum'
'Athanasius', unknown, , 'laetum X viriosum x macgregoriae' x R. javanicum ssp javanicum
'Belisar', unknown, , 'laetum x zoelleri' x 'macgregoriae x zoelleri'
'Claremont', unknown, , 'laetum x zoelleri' x R. jasminiflorum var punctatum
'Cressy', unknown, , 'laetum x zoelleri' x R. jasminiflorum var punctatum
'Cristo Rey' (photo), 1971, Sullivan, P., , 'macgregoriae x zoelleri' x 'laetum x zoelleri'
'Happy Jubilee', unknown, , 'laetum x zoelleri' x 'laetum x zoelleri'
'leucogigas x zoelleri X laetum x zoelleri', No hybridiser registered, , 'leucogigas x zoelleri' x 'laetum x zoelleri'
'Ra', 1998, Blumhardt, O. S., Koromiko Nurseries, Whangarei, New Zealand'laetum x zoelleri' x 'Os's Oriana'
'Rich Amber', unknown, , 'laetum x zoelleri' x 'zoelleri x leucogigas'
'Tom Lelliott', unknown, , 'laetum x zoelleri' x R. konori var konori
'Yellow Fire', 1989, Rouse, J.L., Toorak, Victoria, Australia'laetum x zoelleri' x 'konori x zoelleri X zoelleri'
'Brindabella', unknown, , 'laetum X zoelleri x polyanthemum' x 'Sunny'
'leucogicas x laetum X javanicum', No hybridiser registered, , 'leucogigas x laetum' x R. javanicum ssp javanicum
'leucogicas x laetum X zoelleri', No hybridiser registered, , 'leucogigas x laetum' x R. zoelleri
'leucogigas X leucogigas x laetum', No hybridiser registered, , R. leucogigas x 'leucogigas x laetum'
'Golden Prolific', unknown, , 'macgregoriae x laetum' x R. laetum
'Hawaii Sunrise', 1999, Moyles, E.W., Oakland, California, USA'macgregoriae x laetum' x R. saxifragoides
'Apassionata' (photo), unknown, , 'Simbu Sunset' x 'Calavar'
'Blondie' (photo), Saperstein, S., , Australia'Simbu Sunset' x 'Buttermilk'
'Cara Mia' (photo), Saperstein, S., , Australia'Simbu Sunset' x 'aurigeranum x Doctor Herman Sleumer'
'Coral Seas' (photo), unknown, , 'Pink Delight' x 'Simbu Sunset'
'Margaret Cain', unknown, , R. tuba x 'Simbu Sunset'
'Rosie Posie' (photo), unknown, , 'Simbu Sunset' x 'Simbu Sunset'
'Simbu Goldstrike', unknown, , 'Simbu Sunset' x 'Simbu Sunset'
'Tropic Splendour', unknown, , 'Simbu Sunset' x 'Island Sunset'
'White Bells', unknown, , R. tuba x 'Simbu Sunset'
'Wild Child' (photo), unknown, , 'Fireplum' x 'Simbu Sunset'
'Blonde Bombshell' (photo), unknown, , R. laetum x 'Sweet Wendy'
'Blonde Venus', unknown, , 'Sweet Wendy' x R. laetum
'Cherry Harmony', 1985, Waghorn, F.R., , 'Sweet Wendy' x R. javanicum ssp javanicum
'Choc Orange', 1989, Snell, G.L.S., Vireya Venue, Maleny, Queensland, AustraliaR. laetum x 'Sweet Wendy'
'Orange Harmony', 1985, Waghorn, F.R., , 'Sweet Wendy' x R. javanicum ssp javanicum
'Abby Lauren', 2001, Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia'Teddy's Best' x 'Pastenello'
'Brightly', unknown, , 'Tropic Glow' x 'lochiae x macgregoriae'
'Dawn Chorus' (photo), 1993, USA, , 'Tropic Glow' x 'macgregoriae x viriosum'
'Haloed Gold', 1981, Blumhardt, O. S., Koromiko Nurseries, Whangarei, New ZealandR. christianae x 'Tropic Glow'
'Jiminy Cricket', unknown, , 'Tropic Glow' x R. saxifragoides
'Kisses' (photo), 1980, Blumhardt, O. S., Koromiko Nurseries, Whangarei, New Zealand'Tropic Glow' x 'viriosum x macgregoriae'
'Ok Tedi Gold', 1980, Cullinane, M.D., , 'Tropic Glow' x R. lacteum
'Red Dangles', unknown, , 'Tropic Glow' x R. gracilentum
'Rubina', unknown, , 'Tropic Glow' x R. culminicola var culminicola
'Tropic Coral', unknown, , 'Tropic Glow' x R. viriosum
'Tropic Glow x Tropic Glow', No hybridiser registered, , 'Tropic Glow' x 'Tropic Glow'
'Pendragon', unknown, , 'viriosum x laetum' x R. macgregoriae
'Hendrik's Kanarie', 2002, Van Oost, H, , 'Satans Gift x Flamenco Dancer' x 'Vladimir Bukovsky'
'Innuendo', unknown, , R. multinervium x 'Wattle Bird'
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Rhododendron Species   Hirsutum.info     Project started 03 June 2009