QBARS - v10n2 The American Rhododendron Society Test Garden

The American Rhododendron Society Test Garden
Crystal Springs Lake Island, Portland, Oregon

f

Hybrids in bloom at Crystal Springs Island R. augustinii

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

R. bullatum R. occidentale

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