Volume 10, Number 2
April 1956
The American Rhododendron Society Test Garden
Crystal Springs Lake Island, Portland, Oregon
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Fig. 18. Rhododendron hybrids in bloom along one of the secondary paths in the Society Garden at Crystal Springs Island. R. Henny photo |
Fig. 19. R. augustinii R. Henny photo |
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Fig. 29. R. bullatum, one of the tender species grown in the Society coolhouse at Crystal Springs Island. Bacher photo |
Fig. 21. Close-up view of R. occidentale OR State Highway Commission photo |
Inventories of large rhododendron collections, especially those in Botanic Gardens or other public places open to the public should be of interest to enthusiasts who may wish to know where, in this country, certain clones or species may be seen. The collection in Portland is relatively new but outstanding for its attractive setting as well as for the number of kinds of plants.
The American Rhododendron Society Test Garden, located on an Island in Crystal Springs Lake on S. E. 28th Ave., Portland, Ore., adjacent to the Eastmoreland Golf Course, consists of four acres of natural wooded area. It contains many native trees and shrubs which serve as nesting places for wild ducks and other birds. The Island is connected by a foot bridge to a long peninsula of several acres which is now serving as an expansion area.
The Garden was established in the summer of 1950 by a special Ordinance of the City of Portland, which granted use of this Island to the Society as a Test area for rhododendrons and azaleas. The first planting was started in October, 1950. Since that date paths have been made, rest rooms constructed, and some 300 varieties of hybrid rhododendrons, numerous azaleas, and close to 250 species of the Genus Rhododendron have been planted, a total of over 2500 plants, mostly of blooming size. Every type of rhododendron is represented in the plantings. There are also a number of ornamental plants of other Genera in the collection. The Annual Show of the Portland Chapter is held here during May. Plans are well under way for construction, on the Island, of a cool greenhouse to provide quarters for the Society's collection of tender species and hybrids, especially the maddeniis.
The City of Portland provides water and general maintenance, and the Society has provided the plants, prepared the soil and set them. A great deal of volunteer labor has been provided by a few members of the Portland Chapter, without which the whole project would have been impossible. Money for certain expenditures has been provided by members of the Portland Chapter and none of the regular funds of the American Rhododendron Society have been used. This is a Garden for the enjoyment and benefit of all, provided by the Portland Chapter. The Garden gates are open to visitors daily from the middle of March to the end of August.
In addition to its general educational, scientific and esthetic objectives, it serves as a Test Garden for new varieties. Several are now being grown for consideration by the Awards Committee for Award of Excellence or Test Garden Certificate.
The following lists are available, together with information as to flower color and blooming season in a special booklet available from the Secretary of the A.R.S.. price 25 cents.
HYBRID RHODODENDRONS AND AZALEODENDRONS IN THE TEST GARDEN
A C A. Bedford Camille Adrastia G. Carex Blush Aladdin G. Carex White Albatross G. Carita G. Alice C. B. VanNes Amy Chanticleer G. Anne Kruschke Chevalier Felix de Sauvage Annie E. Endz China G. Antoon Van Welie Choremia G. Argosy G. Cilpinense Aries G. Conemaugh G. Arthur J. Ivens G. Conewago G. Arthur Osborn G. Cornish Cross G. Ascot Brilliant Cornubia G. Augfast G. Corona Avalanche G. Countess of Athlone Azaleoides fragrans Countess of Derby G. Azma G. Countess of Haddington G. Azor G. Countess of Sefton G. B C. P. Raffill G. Bagshot Ruby Cunningham's Sulphur (Barclayi G.) Helen Fox Cynthia (Barclayi G.) Robert Fox D Beacon G. Dairy Maid Beau Brummel G. Damaris G. Beauty of Littleworth Dame Nellie Melba G. Betty Wormald Damozel G. Bibiani G. David G. Black Beauty Dawn's Delight Bluebird G. Day Dream G. Blue Diamond G. (Day Dream G.) biscuit form Blue Peter Deep Copper Blue Tit G. Devonshire Cream Bonfire G. Diane Bonito G. Dido G. Bo-peep G. Diva G. Borde Hill Dolly G. Bowbells G. Doncaster Break of Day G. Dr. Masters Bric-a-Brac G. Dr. O. Blok Britannia Dr. Stocker G. Broughtonii aureum Dormouse G. Bulstrode Park Duchess of York Buttercup Butterfly E H Earl of Athlone Halcyone G. Elizabeth G. Harvest Moon Elspeth Helene Schiffner Erebus G. Hiraethlyn G. Ernest Gill G. Hollandia Essex Scarlet Hugh Koster Ethelred G. Humming Bird G. Ethel Stocker Hyperion Eupheno G. I Europa Ibex G. Idealist G. Everestianum Impeanum G. Exoniense G. Impi G. F Indiana G. Fabia G. (Fabia G.) Isabella G. Exbury (Fabia G.) Ivery's Scarlet Tangerine (Fabia G.) Towercourt Faggetter's Favorite Fastuosum plenum J F. C: Puddle G. Jan Dekens Fire Bird G. Jean G. Flare Jean Marie Montague Forsterianum G. J. G. Millais Fragrantissimum G. J. H. Van Nes Francis Hanger G. Jock G. Freisland Fusilier G. John Walter G K Galloper Light Karkov G. Garnet G. Kate Waterer Gena Kewier Gill's Crimson King George Gill's Triumph G. King of Shrubs Gladys G. L Glory of Littleworth Lady Alice Fitzwilliam Goblin G. (Lady Bessborough ) Roberte Golden Horn G. Ladybird G. Goldfort G. Lady Bligh Glowing Embers Lady Chamberlain G. Gold Braid (Lady Chamberlain G.) Chelsea Goldsworth Crimson (Lady Chamberlain G.) Exbury Goldsworth Orange G. (Lady Chamberlain G.) Gleam Goldsworth Yellow G. (Lady Chamberlain G.) Ivy Gomer Waterer Lady Clementine Mitford Griero-splendor G. Lady Eleanor Cathcart G. Grosclaude G. M Con't Lady Primrose Mrs. C. B. Van Nes Lady Roseberry G. Mrs. Charles Pearson Lady Stuart of Wortley Mrs. Chas. S. Sargent Langley Park Mrs. Charles Thorold Lavender Girl G. Mrs. Donald Graham Lee's Dark Purple Mrs. E. C. Stirling Letty Edwards G. Mrs. Furnival Leonore G. Mrs. G. W. Leak Little Dragon Mrs. Henry Agnew G. Lodauric G. Mrs. Lindsay Smith Loderi G. Mrs. Lionel de Rothschild (Loderi G.) Game Chick Mrs. Mary Ashley (Loderi G.) Helen Mrs. P. D. Williams (Loderi G.) King George Mrs. Philip Martineau (Loderi G.) Queen Mary Mrs. R. S. Holford (Loderi G.) Sir Edmond Mrs. T. H. Lowinsky (Loderi G.) Sir Joseph Hooker Mrs. Walter Burns (Loderi G.) Superlative Mrs. W. C. Slocock G. (Loderi G.) Venus N (Loderi G.) White Diamond Naomi G. Loder's White (Naomi G.) A. M. Lord Roberts (Naomi G.) Carissima Louis Pasteur (Naomi G.) Glow (Luscombei G.) Leonardslee (Naomi G.) Pink Beauty M (Nobleanum G.) Coccineum Madame Masson (Nobleanum G.) Venustum Marcell Moser O Madame de Bruin Odoratum Madame Fr. J. Chauvin Olympic Lady G. Mahmoud Oregon Queen Marchioness of Lansdowne Orion G. Margaret Dunn G. P Mariloo G. (Penjerrick G.) Pink form Marinus Koster (Penjerrick G.) Yellow form Mars Peter Koster Max Sye Pilgrim G. May Day G. Pink Beauty Mevr. P. A. Colijn Pink Pearl Michael Waterer Polar Bear G. Midsummer Praecox G. Mohamet G. Princess Elizabeth Moonstone G. Professor J. H. Zaayer Moser's Maroon Purple Splendour Mother of Pearl Purpureum elegans Mrs. A. T. de la Mare Pygmalion Mrs. Betty Robertson Q S Con't Queen o' the May Snow Queen G. Queen Wilhelmina Souvenir of W. C. Slocock R Susan Racil G. Sweet Simplicity Radium G. T Rainbow Tally Ho G. Red Cap G. Temple Belle G. Red Riding Hood The Don Roman Pottery Thomwilliams G. Romany Chai G. Trilby Romany Chal G. U Rosa Mundi Ungerio Rosamund Millais Unique Rose Elf Unknown Warrior Rosy Bell G. V Rosy Morn G. Vanessa G. (Royal Flush G.) Orange form Vanguard G. (Royal Flush G.) Pink form Van Nes Sensation Rubens Victorianum G. Rubina G. Vulcan G. R. W. Dyke W S Westward Ho Sapphire White Pearl Sappho White Swan Sarita Loder G. Wilbar G. Scandinavia Y (Shangri la) Ethal Stocker Yellow Hammer G. Sir Chas. Lemon Z Sir Frederick Moore G. Zuyder Zee G. Snow Lady
RHODODENDRON SPECIES IN THE TEST GARDEN
No. 1 Albiflorum Series s. s. Obtusum albiflorum mariae mucronatum 'Sekidera' No. 2 Anthopogon Series simsii cephalanthum tschonoskii trichostomum var. ledoides yedoense var. poukhanense No. 3 Arboreum Series s. s. Schlippenbachii Subseries Arboreum amagianum arboreum mariesii campbelliae reticulatum delavayi schlippenbachii kingianum niveum No. 6 Barbatum Series s. s. Barbatum s. s. Argyrophyllum barbatum argyrophyllum smithii insigne ririei s. s. Crinigerum bainbridgeanum No. 4 Auriculatum Series crinigerum auriculatum griersonianum s. s. Glischrum glischrum No. 5 Azalea Series s. s. Canadense s. s. Maculiferum albrechtii longesquamatum canadense monosematum vaseyi morii strigillosum s.s. Luteum aemulans (colemani) No. 7 Boothii Series alabamense s. s. Boothii arborescens boothii atlanticum austrinum s. s. Megeratum bakeri leucaspis calendulaceum megeratum canescens luteum s. s. Tephropeplum nudiflorum auritum occidentale tephropeplum (deleiense) prunifolium xanthostephanum (aureum) serrulatum speciosum No. 8 Camelliaeflorum Series viscosum camelliaeflorum
No. 9 Campanulatum Series No. 18 Fortunei Series campanulatum s. s. Calophytum fulgens calophytum wallichii s. s. Davidii No. 10 Campylogynum Series davidii campylogynum praevernum cremastum sutchuenense var. geraldi myrtilloides s. s. Fortunei No. 11 Camtschaticum Series decorum diaprepes No. 12 Carolinianum Series discolor carolinianum minus fortunei hemsleyanum No. 13 Cinnabarinum Series houlstonii cinnabarinum vernicosum cinnabarinum var. roylei euanthum concatenans sheltonae No. 14 Dauricum Series s. s. Oreodoxa dauricum fargesii mucronulatum No. 19 Fulvum Series No. 15 Edgeworthii Series fulvum bullatum uvarifolium edgeworthii No. 20 Glaucum Series No. 16 Falconeri Series s. s. Glaucum arizelum brachyanthum basilicum glaucophyllum (glaucum) coriaceum shweliense eximium falconeri s. s. Genestierianum fictolacteum genestierianum galactinum hodgsonii No. 21 Grande Series rex macabeanum praestans No. 17 Ferrugineum Series sinogrande ferrugineum hirsutum
No. 22 Heliolepis Series No. 26 Lepidotum Series desquamatum baileyi fumidum lepidotum heliolepis (elaegnoides) oporinum pholidotum No. 27 Maddenii Series rubiginosum s. s. Ciliicalyx burmanicum No. 23 Irroratum Series carneum s. s. Irroratum ciliatum hardingii ciliicalyx irroratum formosum pennivenium iteophyllum johnstoneanum s. s. Parishii scottianum kyawii valentinianum venator veitchianum No. 24 Lacteum Series s. s. Maddenii beesianum crassum lacteum dalhousiae lindleyi No. 25 Lapponicum Series maddenii chryseum megacalyx cuneatum nuttallii drumonium polyandrum fastigiatum rhabdotum flavidum taggianum hippophaeoides impeditum No. 28 Micranthum Series intricatum micranthum litangense microleucum No. 29 Moupinense Series ravum moupinense rupicola russatum scintillans
No. 30 Neriiflorum Series No. 33 Saluenense Series s. s. Forrestii calostrotum forrestii var. repens keleticum radicans s.s. Haematodes riparium chaetomallum saluenense haematodes mallotum No. 34 Scabrifolium hemitrichotum s. s. Neriiflorum pubescens euchaites spiciferum floccigerum spinuliferum neriiflorum sperabile No. 35 Semibarbaturn Series s. s. Sanguineum No. 36 Stamineum Series apodectum wilsonae didymum eudoxum No. 37 Taliense Series haemaleum s. s. Adenogynum sanguineum adenogynum adenophorum No. 31 Ovatum Series alutaceum leptothrium bureavii detonsum No. 32 Ponticum Series prattii s. s. Caucasicum adenopodum s. s. Roxieanum brachycarpum comisteum caucasicum gymnocarpum degronianum microgynum makinoi roxieanum smirnowii s. s. Taliense s. s. Ponticum flavorufum catawbiense alba phaeochrysum macrophyllum taliense maximum ponticum
No. 38 Thomsonii Series s. s. Oreotrephes s. s. Campylocarpum artosquameum caloxanthum exquisitum campylocarpum oreotrephes cyclium s. s. Polylepis s. s. Martinianum polylepis martinianum pseudoyanthinum eurysiphon s. s. Triflorum s. s. Selense ambiguum jucundum chengshienianum flavantherum s. s. Souliei keiskei croceum lutescens puralbum triflorum var. mahoganii souliei xanthocodon wardii williamsianum s. s. Yunnanense cerulean var. album s. s. Thomsonii chartophyllum var praecox eclecteum davidsonianum stewartianum hormophorum thomsonii lochmium searsiae No. 39 Trichocladum Series vilmorinianum chloranthum yunnanense lepidostylum zaleucum melinanthum trichocladum No. 41 Uniflorurn Series imperator No. 40 Triflorum Series pemakoense s. s. Augustinii No. 42 Vaccinioides Series augustinii 'Azuriense' No. 43 Virgatum Series 'Exbury' oleifolium 'Magor' racemosum 'Tower Court' racemosum var. oleifolium chasmanthum s. s. Hanceanum hanceanum nanum
Volume 10, Number 2April 1956
