Good-Doer Rhododendron species for Long Island

Our members over the years have tried to grow many different rhododendron species.  The following are the ones that failed to grow and survive due to either cold in the winter or heat in the summer.  Some plants succumbed almost immediately while others took several years to decline and eventually die:

aberconwayi, albertsianum, aluctaceum, ambiguum, anhweiense, anthopogon, arboretum, argyrophyllum, aureum,

baileyi, bainbridgeanum, barbatum, beanianum, brachyanthum,

caesium, calostrotum, caloxanthum, camelliiflorum, campanulatum, campylocarpum, campylogynum, camtschaticum, cephalanthum, chaetomallum, chapmanii, concatenans, concinnum,

edgarianum, eudoxum,

fastigiatum, fletcheranum, formosanum, forrestii,

glaucophyllum, glomerulatum,

hanceanum, hemitrichotum, hirsutum, houlstonii,

impeditum, insigne, itricatum,

kongboense,

lepidostylum, lutescens, lysolepis,

maculiferum, megeratum, microleucum,

nitens,

orbiculare, oreotrephes, oulotrichum,

pocophorum,

radicans, recurvoides, roxieanum, russatum,

saluensense, sanguineum, scintillans, setosum, strigillosum,

thomsonii, tsariense,

wardii, wasonii,

xanthocodon,

yunnanense, zeylanicum

Now the ones that we've been successful with.  Under the ratings column if you see a "?", it means we're still evaluating this species.

NAME:

adenogynum
adenophorum
adenopodum
alabamense
albrechtii
arborescens
atlanticum
augustinii
auriculatum
austrinum
bakeri (aka cumberlandense)
brachycarpum
bureavii
calendulaceum
callimorphum
calophytum
calostrotum
camelliiflorum
canadense
canescens
carolinianum
catawbiense
caucasicum
chlorops
concinnum
dauricum
davidsonianum
decorum
degronianum
diaprepes
discolor
fargesii
fauriei
flammeum
flavidum
fortunei
gymnocarpum
hippophaeoides
hunnewellianum
hyperythrum
hypoglaucum
kaempferi
keiskei
keleticum
kiusianum
litiense
longesquamatum
luteum
macrosepalum
makinoi
mariesii
maximum
metternichii
micranthum
minus
morii
mucronulatum
myrtifolium
nakaharae
oblongifolium
oreodoxa
oreotrephes
pachysanthum
pentaphyllum
periclymenoides
ponticum
praevernum
prinophyllum
prunifolium
pseudochrysanthum
quinquefolium
racemosum
reticulatum
rigidum
rubiginosum
rufum
schlippenbachii
serrulatum
smirnowii
souliei
sphaeroblastum
sutchuenense
tatsienense
thayeranum
tricanthum
ungernii
vaseyi
vellereum
vernicosum
viscosum
williamsianum
wiltonii
yakushimanum
yedoense var. poukhanense

TYPE:

s.taliense, ss adenogynum
s. taliense
s. ponticum, ss caucasicum
s. azalea, ss luteum
s. azalea, ss canadense
s.azalea, ss luteum
s.azalea, ss luteum
s.triflorum,ss augustinii
s.auriculatum
s.azalea, ss luteum
s.azalea, ss luteum
s. ponticum, ss caucasicum
s. taliense, ss adenogynum
s.azalea, ss luteum
s.thomsonii, ss campylocarpum
s. fortunei, ss calophytum
s. saluenense
s. camelliiflorum
s. azalea, ss canadense
s.azalea, ss luteum
s. carolinianum
s. ponticum, ss ponticum
s. ponticum, ss caucasicum
s. ponticum, ss ponticum
s.triflorum, ss yunnanense
s. dauricum
s.triflorum, ss yunnanense
s.fortunei, ss fortunei
s. ponticum, ss caucasicum
s. fortunei, ss. fortunei
s. fortunei, ss. fortunei
s. fortunei, ss oreodoxa
s. ponticum, ss caucasicum
s.azalea, ss luteum
s. lapponicum
s. fortunei, ss. fortunei
s.taliense, ss. roxieanum
s. lapponicum
s. arboreum,ss argyrophyllum
s. ponticum, ss caucasicum
s. arboreum,ss argyrophyllum
s. azalea, ss obtusum
s. triflorum, ss triflorum
s. saluenense
s. azalea, ss obtusum
s.thomsonii, ss. souliei
s.barbatum, ss maculiferum
s.azalea, ss luteum
s. azalea, ss obtusum
s. ponticum, ss caucasicum
s. azalea, ss schlippenbachii
s. ponticum, ss ponticum
s. ponticum, ss caucasicum
s. micranthum
s. carolinianum
s.barbatum, ss maculiferum
s. dauricum
s. ferrugineum
s. azalea, ss obtusum
s. azalea, ss luteum
s. fortunei, ss oreodoxa
s. triflorum, ss yunnanense
s. barbatum, ss maculiferum
s. azalea, ss canadense
s.azalea, ss luteum
s. ponticum, ss ponticum
s.fortunei, ss davidii
s.azalea, ss luteum
s.azalea, ss luteum
s.barbatum, ss maculiferum
s. azalea, ss schlippenbachii
s.scabrifolium
s. azalea, ss schlippenbachii
s. triflorum, ss yunnanense
s.heliolepsis
s.taliense, ss wasonii
s. azalea, ss schlippenbachii
s.azalea, ss luteum
s. ponticum, ss caucasicum
s. thomsonii, ss souliei
s. arid, ss taliense
s.fortunei, ss davidii
s. triflorum, ss yunnanense
s. arboreum, ss argyrophyllum
s.triflorum, ss augustinii
s. ponticum, ss caucasicum
s. azalea, ss canadense
s. taliense, ss taliense
s.fortunei, ss fortunei
s.azalea, ss luteum
s. thomsonii, ss williamsianum
s. taliense, ss wasonii
s. ponticum, ss caucasicum
s.azalea, ss obtusum

Description:

3',-15F,EM-M, tan indumentum
4',-10F,EM-M, indumentum
5',-10F,EM-M, gray indumentum
4',-5F, M, flowers have lemony fragr
4',-15F, E, deciduous
5',-10F,VL, fragrant
3-4',-15F,M, deciduous, fragrant
6',-5F,EM, many forms
6',-5F,VL, sometimes scented
5',-15F,M, deciduous
4',-15F,VL, deciduous
3',-10F,VL, indumentum
4',-10F,M, indumentum, good drainage
5',-25F,ML-L, deciduous
3', -5F, M,
5', -15F, E,
2',-5F,M, aromatic leaves
6',5F,ML
2',-25F,E, deciduous
6',-5F,E-M, deciduous,fragrant
4',-5F,M-ML,sun tolerant
6',-25F,M-ML,
3',-5F,E-M, fawn indumentum
4',-5F,M,
5',-5F,M, tree like growth
4',-25F,VE, semi-deciduous
6',0F,EM
5',0F,EM
3',-5F,E-EM, reddish brown indumentum
6',5F,L-VL, fragrant
6',-5F,VL, fragrant
5',-10F,E,
3',-10F,L-VL,
3',-15F,ML-L, deciduous,
2',-10F,EM
6',-15F,M, fragrant
3',-5F,EM
3',-25F,E, sun tolerant
5',5F,VE-EM,
3',-15F, EM,
5',5F,M,white indumentum
4',-5F,M-ML, semi-deciduous
2',-5F,EM, several forms
1", -15F, M
2',-10F,M-ML, several forms
4',-5F,M-L
4',-15F,M
4',-15F,M-L, deciduous, fragrant
3',5F,M-L, narrow leaves
3',-10F,ML, tawny indumentum
4',-5F, E, deciduous
5',-25F,L-VL,
3',-15F,EM-M,cinn.brwn indumentum
4',-5F,ML-L, very small leaves,flowers
4', -15F,M-L, varied growth habit
4',-10F,EM
5',-15F,VE, deciduous, several forms
2',-10F,M-L
1',-5F,L-VL, creeping growth
3', -5F, L-VL
5',-5F,E-EM, needs sheltering location
5', 0F, EM
2.5', -5F, EM-M, slow grower
4',-5F, E
5',-15,M, deciduous,light scent
4',-15F,L,
5',-5F,VE-EM,
5',-25F,M, deciduous,clove scent
4',-15F,VL,
1-3',-10F, EM, several forms
2.5', -5F, EM
2-5',-5F,E-EM,
6',-10F,EM, deciduous,"3 leaf Jap.Az
6', -5F, EM, white form ok
6',0F,EM,
4',-5F,EM,dark brwn indumentum
4',-25F,E-EM,
5',-5F,VL, deciduous,red-bwn new growth
3',-15F,ML, tawny indumentum
5', -5F, M
4', -5F, EM
5',-10F,VE, large leaves
5', 5F, EM
5', 0F, VL
6',-5F,L,
3',-10F,VL, grey-fawn indumentum
5',-15F,EM, deciduous,
5', -5F, E
5',-15F,M, very variable
5',-15F,VL, deciduous, fragrant
1.5', -5F, EM
3', -5F, EM
1-4',-25F,EM, wooly brwn indumentum
4',-15F,E, deciduous,

Rating

good
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good
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good
good
good
good
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ok
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good
good
good
good
good
good
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good
good
ok
good
good
good
good
good
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good
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good
good
good
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good
good
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good
good