Black Adder


Pink azalea from Homebush crpss


R. thomsonii, hardy -22C

Helsinki University

Red River






This Seed Exchange is closed




Seed packets are $2.50 CDN each for collected wild, $2.00 CDN each for hand-pollinated and $1.50 CDN each for open-pollinated seed.  One packet per lot per person. More may be ordered but are subject to availability.
All orders must be on the form provided 

Orders from ARHS members-only will 
be received until  February 29, 2008.
Non-members: Orders can be submitted after Feb29, 2008 until April30, 2008


Send all orders to: Sharon Bryson, #407 Old Maryvale Rd., RR#3 Antigonish, Nova Scotia B2G 2L1 CANADA  
Please make your cheque or money order payable to ‘Atlantic Rhododendron & Horticultural Society’. Add $2.00 CDN for postage & padded envelope. Please list substitutes as quantities for some lots are small.


Please note the addition of seed contributed by W. Reich; listed after Companion Plants #130-140
Seed Lots which are Not Available will have a strike through.


US regulations now require an import permit and a phytosanitary certificate.
Seeds sent to the US will be shipped without a phytosanitary certificate and at the orderer’s risk.





DONORS:   BIR - Jens Birck, Copenhagen, Denmark   CLY - Bruce Clyburn, New Waterford, NS   CRA - Don Craig. Centerville, NS   CRE - Mike Creel, Lexington, S.C., USA  DOI - Yasuyuki Doi, Hokkaido, Japan  HAR - Joe Harvey, Victoria, BC   HYA - Don Hyatt, McLean, VA, USA  LOO - Jack Looye, Niagara on the Lake, ON  MAC - Philip MacDougall, Surrey, BC  MAT - Stefan Mattson, Enkoping, Sweden  OST - Walter Ostrum, Halifax, NS  REI - Wolfgang Reich, Germany  SHA - Ken Shannik, Halifax, NS  STA - Barry Starling, Exeter, Devon, England  STE - Sheila Stevenson, Ferguson’s Cove, NS  THE - Kristian Theqvist, Finland   WEA - John Weagle, Halifax, NS   WIL - Bill Wilgenhof, Antigonish, NS



Rhododendron Species – Collected Wild  - $2.50

001    HYA     arborescens     Compact white - Collected wild, Macon County, North Carolina

002    HYA    calendulaceum Engine Gap, NC Appalachian Trail in the Roan Highlands

003    HYA   calendulaceum Mix (wide variation: yellow, orange, to red) collected wild, NC 2006

004    MAC    morii  Taiping Shan, Taiwan, 2007

005    MAC    morii x pachysanthum, Taiwan, 2007

006    STA      nipponicum

007    MAC    pseudochrysanthum Taiwan, 3200m         29/10/07

008    MAC    pseudochrysanthum    Huheun Shan Taiwan 08/10/07

009    MAC    rubrospilosum   Taiwan, 05/10/07

010    MAC    rubrospilosum   Taiwan, 2007

011    STA      wadanum  (deciduous azalea)  

012    HYA    vaseyi Mix - Collected wild, Transylvania County, NC



Rhododendron Species - Hand-Pollinated  - $2.00


013    DOI      dauricum v. nana   Dwarf, red-purple flower

014    DOI      dauricum v. nana   Dwarf, pink flower

015    DOI      dauricum v. nana   Semi-dwarf, white flower

016    DOI     mucronulatum v. ciliatum, Good flower

017    BIR     makinoi Tysk x makinoi Kew

018    BIR     recurvoides Windsor x recurvoides RBGE

019    BIR     thomsonii Sofiero x thomsonii cw Bhutan



Rhododendron Species - Open-Pollinated  - $1.50

020    WIL    canadense (Native Rhodora) - fuchsia

021    WEA  canadenseAlba’ - white version of native Rhodora

022    WIL    maximum, pinker form

023    WEA  mucronulatum v. taguetii, dwarf form

024    CRE    periclymenoides Flat Creek Fuchsia

025    HYA   prunifolium Orange-red Garden plant (selfed?)

026    CRA   schlippenbachii

027    WIL    schlippenbachii, pinker form

028    OST    vaseyi, pink-lavender, good form

029    HYA   vaseyi              

030    HAR   yakushimanumExbury


Rhododendron Hybrids - Hand-Pollinated -$2.00


031    DOI     (aureum x wardii) x lacteum RSF

032    DOI     brachycarpum v. roseum x campanulatum v. aeruginosum

033    DOI     elliottii SHE10 x brachycarpum v. roseum                              

034    DOI     ‘Glendoick Velvet’ x brachycarpum v. roseum  - blue-purple flower

035    DOI     (Hotei x aureum) x lacteum RSF  - deep yellow flower, small tree

036    BIR     (aureum x horaeum) x pronum

037    BIR     ‘Bambi’ x horaeum

038    BIR     (‘Bambi’ x proteoides) #17 x haematodes FCC

039    BIR     (‘Bambi’ x proteoides) #17 x rex

040    STA      brachycarpum Tigerstedtii x ‘Lava Flow’†19

041    STA      brachycarpum Tigerstedtii x niveum   (exceptionally dark form selected by BS)

042    BIR     bureavii x heamatodes FCC

043    THE    ‘Calsap’ x ‘P.M.A. Tigerstedt†1, cp †18

044    CLY    ‘Capistrano’ x ‘Phipp's Yellow            'Capistrano' image

045    CLY    R. catawbiense 'U.Paim' x R. rex †2

046    THE    ‘Charme La†3, selfed, cp †18

047    LOO    ‘Cherokee’†4 x ‘Casanova

048    LOO    ‘Cherokee’ x ‘Rio

049    CLY    ‘Connecticut Yankee’ x ‘Montego 

050    BIR     dauricum v. album x dendrocharis (pink)

051    LOO    (‘Double Charm’) †5 x ‘Sweet Lulu’) x ‘Casanova’

052    BIR     ‘Fantastika’ x (aureum x ‘Prelude’) Bpt#80-5

053    BIR     ‘Goldprinz’ x (aureum x ‘Prelude’) Bpt#80-5

054    BIR     ‘Goldsauber’ x (‘Bambi’ x proteoides) #16

055    BIR     ‘Goldsprenkel’ x (aureum x’ Prelude’)Bpt#80-5

056    THE    ‘Hellikki†6 x ‘Henry’s Red†7, hp              

057    THE    ‘Hellikki’ x ‘Rasputin†8, cp

058    THE    ‘Helsinki University†9 x longesquamatum

059    BIR     kesangiae x ‘Great Dane’

060    BIR     ‘Lucinda’ x (aureum x Prelude) Bpt#80-5

061    LOO    ‘Mrs.Richard Fennicia†10 x ‘Rio

062    BIR     ‘Napoli’ x ‘Abraxas

063    CLY    ‘Normandy’ x R. calophytum      

064    BIR     ‘Norph’ x (aureum x ‘Prelude’) Bpt#80-5

065    BIR     ‘Norph’ x (‘Bambi’ x proteoides) #16

066    BIR     ‘Paprika Spiced’ x pronum wb    

067    THE    ‘Pekka†11 x hemsleyanum, cp

068    THE    ‘Pekka’ x insigne, cp

069    THE    ‘Pekka’ x longesquamatum, cp   

070    THE    ‘Pekka’ x prattii, cp                      

071    THE    ‘Pekka’ x taliense, cp                    

072    THE    ‘P.M.A. Tigerstedt x ‘Calsap, cp              

073    HAR    pseudochrysanthum x metternechii  (degronianum ssp heptamerum )

074    LOO    ‘Purple Reign’†12 x Blue Baron’ 

075    BIR     ‘Recital’ x (aureum x ‘Prelude’) Bpt#80-5

076    BIR     ‘Recital’ x (‘Top Banana’ x proteoides R.151)

077    CLY    ‘Red River’ x   ‘Babylon    (image)                         

078    CLY    ‘Russell Harmon’ x (R.fortunei x R. fictolacteum) †13.

079    BIR     rex x ‘Great Dane

080    THE    St. Michel†14 x hemsleyanum, cp

081    THE    ‘St. Michel’ x   prattii, cp             

082    BIR     ‘Topsi x haematodes FCC

083    BIR     wardii (flat flower) x (‘Bambi’ x proteoides) #16

084    LOO    ‘Wizard’ x ‘Capistrano’

085    HAR   yakushimanumExbury  x  roxieanum Oreonastes

086    HAR   yakushimanumExbury’ x  degronianum

087    HAR   yakushimanumExbury’ x  roxieanum Cucullatum

088   DOI      yakushimanum FCC x kesangiae, beautiful large tree-like R. hodgsonii,           
                     large leaves with indumentum -deep pink or red-purple flower. Pollen from Bhutan 3300M

089    BIR     yakushimanum Schneekissen (dwarf) x proteoides R.151

090    BIR     yakushimanum Schneekissen (dwarf) x (aureum x Prelude) Bpt#80-5

091    BIR     yakushimanum Schneekissen (dwarf) x Black Adder

Rhododendron Hybrids - Open-Pollinated - $1.50


092    WIL    ex Mist Maiden, yak hybrid      

093    WIL    Nepal - hardy, pink buds opening white

094    WIL    Red River - very late red, R. maximum hybrid                                                      

Azalea Hybrids - Hand-Pollinated - $2.00

095    CRE    flammeum RedBank 2 x red flammeum      


Azalea Hybrids - Open-Pollinated - $1.50

096    CRE      "Between2Roads" periclymenoides / canescens natural hybrid

                      Pink, ball-shaped truss, tubular florets

097    WIL    ex Homebush

098    WIL    Seedlings from a ‘Homebush’ cross, many

                      pink forms

099    WIL    ex ‘July Jester, vivid     reddish-orange flowers, medium height - late blooming †15

100    WIL    Unnamed - Yellow, small florets, likely luteum mix, good fall colour    

101    WIL    Unnamed scarlet, large flowers

102    WIL    Deciduous mix - coral, white, pink, and

                      yellow shades   FREE

Companion Plants - Open-Pollinated - $1.50


103    MAC  Arisaema taiwanense   cw Taiwan, 02/10/07

104    MAC  Arisaema taiwanense   cw Taiwan, 05/10/07

105    WIL    Catalpa ovata (Chinese catalpa) - creamy

                      white flowers, blooms at young age, 35-40’ - Tree               

106    SHA   Clematis fargesii ssp. souliei (potaninii) - white flowers, summer blooming -Vine       

107  SHA Clematis flammula - masses of fragrant white flowers in fall, very vigorous - Vine

108    WIL    Clematis recta, purpurea - Purple new foliage, white flowers Herbaceous 3Ft+ - Per.      

109    WIL    Clematis tangitica - yellow lantern-shaped flowers, fluffy seed-heads - Vine  

110    SHA   Clematis viorna - small, thick, purple-pink, urn-shaped flowers - Herbaceous  

111    SHA   Cornus mas Cornelian Cherry. Small tree

                      - yellow flowers in early spring followed by red fruit. - Tree

112    MAC  Hydrangea anomala     cw Taiwan, 2007

113    MAC  Hydrangea aspera    cw Taiwan, 2007

114    MAC  Hydrangea angustipetala - very large bracts cw Taiwan, 2007

115    WIL    Kalmia latifolia Mix -red/pink shades Shrub

116    SHA   Lilium canadense- Flowers are nodding, flared and trumpet-shaped. Usually yellow with dark spots.
                    May be over 1 M tall. Bulb

117    SHA   Lilium henryi - Waxy orange flowers with green center and reflexed petals.

                      Arching stems. - Bulb                  

118    WIL    Lilium martagon  Pink drooping recurved blooms - earliest lily - Bulb

119    CRA   Magnolia ex ‘Ivory Chalice’ †16  17

120    WIL    Magnolia kobus hyb. ex. ‘Leonard Messel

                      Pink flowers, early spring - Small tree †17

121    WIL    Magnolia stellata (Star Magnolia) Dwarf form white blooms, early spring - Tree †17

122    CRA   Magnolia  sieboldii      †17

123    WEA  Magnolia  sieboldii  from ex. cw. Korean seed, white with pink stamens.

                      Large flowered and vigorous - Tree †17

124    WEA  Magnolia  sieboldii , “ Wainwright form” sibling to Halifax Hardy  ,white with pink stamens.
                      Large flowered and vigorous - Tree    †17

125    SHA   Meconopsis betonicifolia - Himalayan Blue Poppy - Perennial (online cultural info)

126    SHA   Paeonia paradoxa (officianalis ssp villosa) -

                      Single bright fuchsia pink flowers with blue-

                      green foliage, 18-24" - Perennial

127    MAT  Paeonia suffruticosa v. spontanea - Tree Peony   Growing instructions online. - Per.   

128    SHA   Stewartia pseudocamelia   White camelia-like flowers in summer.

                      Beautiful exfoliating bark - Tree  

129    STE     Triosteum pinnatifidum - Oak-leaf hydrangea-like foliage clasping the stems.

                      Topped with clusters of white flushed pink berries.

                      Sun to part-shade. 18-24" -Perennial   


Late Seed from Wolfgang Reich     

RHybrids or Species all HP $2.00

                key to type:

                Elepidote Hybrid - ElepHy

                Lepidote Hybrid - LepHy

                Elipidote Species - ElepSp

130          REI         
Abraxas’ x dichroanthum ElepHy

131          REI          concinnum Pseudoyanthinum Group (best Tower Court clone)

                                x prostratum (dark violet form)  LepHy ( prostratum = Rhododendron saluenense ssp. chameunum )

132          REI          concinnum Pseudoyanthinum Group (best Tower Court clone)

                                x [campylogynum Celsum Group x (dauricum v. album x mucronulatum v. album)]

                                Weagle hybrid      LepHy

133          REI          Dőrte Reichx dendrocharis CCH3915  LepHy

134          REI          electeum selfed (good yellow)    ElepSp

135          REI          [makinoi x (yakushimanum x gymnocarpum)] red selfed    ElepHy

136          REI          'Matthias Reich’ x russatum hybrid (latter with bigger flowers)   LepHy

137          REI          ('Razorbill' x 'Laurin') x concinnum Pseudoyanthinum Group (best Tower Court clone)            


138          REI          ('Razorbill' x' Laurin') x yunnanense    LepHy

139          REI          [('Razorbill' x 'Laurin') x (concatenans x ‘Pink Drift’)]

                                x concinnum Pseudoyanthinum Group (best Tower Court clone)    LepHy

140          REI          [‘Serendipity’ x (yakushimanum x dichroanthum orange form) orange] selfed ElepHy


†1.           ‘P.M.A. Tigerstedt’ (also known as ‘Peter Tigerstedt’), super hardy Finnish hybrid             

†2.           note fr. B. Clyburn: A seedling of the species represented in the Dr. U. Paim garden, Fredericton, New Brunswick.
His plant passed -30F and had full trusses. My plant hasn’t seen that extreme temperature, but winters when I see a few
blown pips on Joe Gable’s ‘Catalgla’, this selection has no damage.....a hardier cat  form

†3.           ‘Charme La’, large pinkish-purple flowers, Brueckner's lepidote hybrid minus Carolinianum Group x pemakoense Patulum Group

†4.           ‘Cherokee’ = a plant of the Hages, has large orange-rose flowers             

†5.           ‘Double Charm’ = ‘Queen Annsx ‘Golden Star’

†6.           ‘Hellikki’, red flowered hardy Finnish hybrid, smirnowii Seidel hybrid x unknown

†7.           ‘Henry's Red’, red catawbiense seedling x unknown   

†8.           ‘Rasputin’, Hachmann's dark flowered cross =  (‘Nova Zembla’ x ‘Purple Splendour’) x ‘Purple Splendour’                           

†9.           ‘Helsinki University’, super hardy Finnish brachycarpum ssp. tigerstedtii hybrid

†10.          Mrs. R. Fennicia is a Smirfort (smirnowii x fortunei) with peachy-salmon flowers

†11.         Pekka’, super-hardy Finnish brachycarpum ssp. tigerstedtii x smirnowii hybrid, strong growth

†12.         Purple Reign’ = (Tet. Carol. x fastiguum) x ( Tet. Carol. x ‘Blue Diamond’) / Tet.Carol. = tetraploid  carolinianum         

†13.         R. fortunei x R. fictolacteum is the Knippenberg hybrid registered as Hardy Giant

†14.         St. Michel’, (also known as ‘Mikkeli’), super hardy Finnish brachycarpum ssp. tigerstedtii x  smirnowii hybrid

†15.         ‘July Jester’ = (R. prunifoliumS. D. Coleman’ x R. cumberlandense  ‘Scarlet Salute’)          

†16.         Magnolia x ‘Ivory Chalice’ Mature Ht/Wd: 18'/10'. Large goblets of pure ivory blooms appear before the foliage E-Mid spring.

                Very stingy seed production. Hybrid (M. acuminata x M. denudata) created by David Leach

†17.         Magnolia seed has been stratified. Store in fridge in plastic packet as received until March/April,

                 then sow in warm soil.

†18.         cp = Controlled Pollination, where stigmas have been protected before and after pollination.
                Exception: ‘Hellikki’ x ‘Henry's Red’ was hand-pollinated on wet non-covered stigmas.

†19.         'Lava Flow' = griersonianum hybrid, low(~2Ft.) with vibrant scarlet flowers .Hardy to -10F


1.      Open-pollinated species, with the exception of a very few, may not come true from seed. Cultivars, with the exception of a few
          perennials do not come true. Plants from these seeds should not be labelled as being that species or cultivar.

2.      The 2008 Seed List will be posted on the Internet with insertion of images and links to help in your decision-making.
      Follow the links for ARHS Seed Exchange.

         A link to the list will be inserted on the Atlantic Rhodo site.

3.      See the RSCAR Members’ Handbook for an article on growing rhododendrons from seed. The article can also be found on our website.

4.      When sowing rhododendrons on peat we recommend you sterilize it first. Microwave it for 15 minutes or pour boiling water through it several times.
          Allow to cool.

5.     We would like to thank the seed donors for their time and effort making crosses, collecting and cleaning seeds.
        We would also like our membership to take note of the types of seeds donated this year.
        We highly encourage members to attempt their own hybridization of rhododendrons.
        Seed of uncommon trees, shrubs and perennials is always most welcome.

6.     Here are some useful "homework" links:

7.    We have started a "Blog" aimed at Rhododendron/Azalea Seed growers who have participated in the annual Seed Exchanges over the last several years.
        It is entitled "Atlantic Rhodo Seed Growers". Check out the link.

        Participants are welcome, just e-mail for directions regarding access.


Rhododendron Page

updated: Sept 4, 2008