ARHS 2011 SEED EXCHANGE
INSTRUCTIONS
This Exchange is
open to everyone from March1, 2011 until April30, 2011
Seed packets are $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.
Add $2.00 CDN for
postage & padded envelope. Please list substitutes as quantities for some
lots are small.
Lot #'s sold out will be designated with a strike through.
All orders must be on
the form provided
Send all orders to:
Sharon
Please make your cheque or money order payable to ‘Atlantic Rhododendron
& Horticultural Society’.
US regulations now require an import
permit and a phytosanitary certificate. Seeds sent to the
SEED LIST
DONORS: BIR - Jens Birck,
COR
- Wendy Cornwall,
SHA
- Ken Shannik,
WIL -
Bill Wilgenhof, Antigonish, NS
Rhododendron Species - Hand-Pollinated - $2.00
001 WEA R. albrechtii (very dark)
002 WEA R. camtschaticum, pure pink, large
flowers
003 WEA R. camtschaticum, pink-purple, vigorous form
004 WEA R. carolinianum (Barbara Hall's best),
sibbed
005 CRA R.
cumberlandense ‘Top of The Mountain’
ex seed collected wild,
* this is the best selection, orange/red, very late flowering
006
THE R. R.
dichroanthum ‘Böhmen’ †1, selfed †17
Rhododendron Species - Open-Pollinated - $1.50
007 THE R. ledebourii†2
008 CRA R. calendulaceum
009 CRA R. cumberlandense ‘Top of the Mountain’
010 WEA R. oreodoxa ssp. fargesii (Bayport best)
should come true, isolated and reluctant to
cross
011 WEA R. kiusianum, mixed selections light pink, dark
pink, purple, lavender, red/orange, white.
Fairly isolated so a high percentage will be
kiusianum itself
012 WEA R. maximum (Boulderwood
red leaf)
013 WIL R. maximum, pinker form
014 WEA R. minus, Carolinianum Group, Bayport robust
ex
015 WEA R. minus x R. carolinianum (‘Mincar’)
016 WIL R. minus Carolinianum Group, pink
017 WEA R. mucronulatum v. taquetii Dwarf purple,
Expect about 40% true
018 WIL R. mucronulatum, pink
019 WIL R. mucronulatum, white form
020 SHA R. schlippenbachii, good pink form
021 SHA R. vaseyi - pink, doesn’t cross with other
species
022 SHA R. vaseyi ‘White Find’, doesn’t cross with other
species
Rhododendron Hybrids - Hand-Pollinated -$2.00
023 BIR R. aureum (Doi) x R.macabeanum
024 BIR R. aureum (Doi) x ‘Nancy Steele’ †3
025 CLY ‘Augie Kehr’ x ‘Nancy Steele’
026
BIR R. brachycarpum v. roseum
(Doi)
x
R. citriniflorum v. horaeum
027 CLY ‘Catalgla’ x [(yak x lacteum) x ‘Powder
Snow’]
028 BIR ‘Charme-La’ x R. cinnabarinum Roylei Group
029 BIR ‘Charme-La’ x ‘Biskra’
030 LOO {‘
‘Mars’)]} X ‘Fireman Jeff’
031 LOO ‘Cindy Lou’ (Delp) F2 x ‘Fireman Jeff’ †4
032 THE ‘Eino’†4 x ‘Burgundula’ †6 †18
033 CLY ‘Golden Sceptor’ x ‘Nancy Steele’
034 THE ‘Hellikki’†7 x ‘Goldprinz’ †8
035 THE ‘Hellikki’ x ‘Matador’ †9
036 THE ‘Hellikki’ x R. ochraceum
037 THE ‘Helsinki University’ †10 x ‘Christian’ †11
038 THE
‘
039 THE ‘Mikkeli’ †13 x ‘Matador’
040 THE ‘Mikkeli’ x R. ochraceum
041 THE ‘Pekka’ †14 x fortunei ‘Best Form’
042 THE ‘Pekka’ x prattii
043 CLY
R. catawbienese "U.Paim"
x ‘
044 BIR R. sanguineum ssp. didymium Rock#44 x
R. brachycarpum v. roseum (Doi)
045 CLY
‘Russel Harmon’ x ‘
046 LOO ‘Sandra Hinton’ x (R. maximum x R. fortunei)
047 CLY Steele white R. catawbiense hybrid x [(yak x
lacteum) x ‘Powder Snow’]
048 CLY ‘Vinecrest’ x ‘Nancy Steele’
049 CLY (‘Whitestone’ x yak) x (yak x lacteum)
Rhododendron Hybrids - Open-Pollinated - $1.50
050 WIL ‘Peter Tigerstedt’, OP
051 WIL
‘
052 WIL seedling from ARS92#608, aka “Ivory Cloud”
053 WIL seedling from ARS92#765, aka “Ruby Lemon”
(‘Janet Blair’ x ‘Barbara Cook’)
Azalea Hybrids - Hand-Pollinated - $2.00
054 CLY ‘Gibraltar’ x ‘Balzac’ (fr.2010)
055 CLY ‘July Jester’ †15 x (R. cumberlandense x ‘Cream Puff’) (fr.2010)
056 CLY ‘July Jester’ x (R. cumberlandense x R. luteum)
(fr.2010)
057
CLY ‘July Jester’ x R.
mollis ssp. japponicum
(orange) (fr.2010)
Azalea Hybrids - Open-Pollinated - $1.50
058 WIL ex ‘Home Bush’, ball-shaped pink trusses Great performer - mid-late blooming
059 WIL Unnamed azalea seedling from ARHS’01#74
(R.arborescens x R.cumberlandense),
scarlet/orange, late
060 WIL Unnamed azalea seedling from ARS2001#539, Late blooming pink, very fragrant
061 WIL Unnamed seedling from ‘Homebush’ x ‘Mt. St.
Helen’s’, raspberry with golden blotch
062 WIL Unnamed seedling from ‘Homebush’ x
unnamed pink, red ball-shaped truss
063 WIL Unnamed seedling from ‘Homebush’ x
unnamed yellow, large peach florets
064 WIL Unnamed azalea seedling small yellow florets vivid fall foliage (likely luteum mix)
065 WIL Deciduous azalea, mix - FREE
Companion Plants - Open-Pollinated - $1.50
066 SHA Aconitum fischeri (a few only) blue
flowers in
late fall, sturdy - Per
067 SHA Aconitum japonicum, blue flowers on
arching
stems in late summer - Per
068 SHA Actaea spicata, creamy-white fragrant flowers
followed by shiny black fruit. Poisonous - Per
069 WIL Aquilegia sp. ‘Irish
Elegance’ White with
green splash ~30” -Per
070 SHA Anemonopsis
macrophylla Choice woodlander
Per.
071 WEA Arisaema
ciliate, burgundy striped flowers
topped by a whorl of narrow leaves
072 SHA Callicarpa
dichotoma, clusters of
tiny purple
berries in fall - Shrub
073 HEL Caulophyllum
thalictroides, Blue Cohosh
1-3 Ft. - Per
074 SHA Cimicifuga racemosa ‘Hillside Black Beauty’
(now Actaea racemosum) (Black Snakeroot)
Very dark foliage and fragrant white flowers
in late summer. 5’(1.5m) - Per
075 SHA Clematis koreana - Shrub
076 SHA Clematis viorna, small, thick, purple-pink
urn- shaped flowers Herbaceaous- Per
077 WEA Cyclamen hederifoilum
(silver-leafed form)
-Per †16
078 SHA Deinanthe bifida, Blue, 18"(.45m), part shade,
hydrangea relative - Per
079 SHA Deinanthe caerulea - Per
080 WIL Dictamnus fraxinella (Gasplant) Pink ~30”
Good foliage, handsome seed heads -Per
081 HEL Disporum
flavens, Fairy
Bells
primrose-yellow, pendant blooms on tall, 30-inch stems. Early spring - Per
082 SHA Diphylleia
cymosa Bold foliage
plant for moist part shade. Small white flowers
followed by dark blue berries held above foliage - Per
083 SHA Enkianthus campanulatus, ericaceaous shrub, brilliant fall colour - Shrub
084 SHA Gentiana asclepiadea (WillowGentian) Blue
flowers, arching stems ~2Ft -Per
085 SHA Gentiana asclepiadea ‘Alba’ ~2 Ft - Per
086 HEL Glaucidium
palmatum, Japanese Wood Poppy
White poppy-like flowers in spring - Per
087
HEL Glaucidium palmatum, Japanese Wood Poppy
Mauve poppy-like flowers in spring - Per
088
COR Halesia monticola (Mountain
Silverbell)
White flowers followed by winged
Fruit - Tree to 30Ft.
089 SHA Helleborus argutifolius - Per †19
090 SHA Helleborus foetidus ‘Wester Flisk’
green flowers very early in spring above
evergreen foliage - Per †19
091 WIL Kalmia latifolia, OP pinks - Shrub
092 WIL Leucothoe fontaneisiana (Drooping leucothoe)
Handsome evergreen shrub, broader than tall
Small white flowers in spring - Shrub
093 SHA Lilium
candense, red form - Bulb
094 WIL Lilium martagon White drooping recurved blooms, earliest lily - Bulb
095 WEA Lilium mackliniae Pink, fading to white, ~30"
Plant deep, avoid drought - Bulb
096
WIL Magnolia loebneri hyb. ex.’Leonard Messel’, pink, mid-sized
Tree †17
097 WEA Magnolia sieboldii
ex Korean plant h.p.
(selfed) white with pink stamens, vigorous
- Tree †17
098 WEA Menzesia ciliicalyx v. purpurea (dwarf form)
- Ericaceous shrub
099 WEA Nomocharis maire Heavily spotted, summer flowering. - Bulb
100 SHA Ophiopogon planiscapus ‘Nigrescens’
makes a great groundcover or edge plant for the
border of a garden 12”+/- (about 75% should come true) - Per
101 SHA Podophyllum hexandrum
(Himalayan Mayapple)- Per
102 SHA Primula viallii Chinese Pagoda Primrose
Produces a stout 1-2’ stalk bearing a mauve-
scarlet, rocket-shaped, flower cone. - Per
103 WIL Rudbeckia ‘Prairie Sun’, golden yellow with
green centre 24-30” - Per or Annual
104 SHA Smilacina
racemosa (now Maianthemum
racemosum) (a few only) - Per
105 SHA Stewartia pseudocamellia, noteworthy peeling
Bark - Tree
106 SHA Streptopus roseus (Rosy Twisted Stalk) flowers
bell-shaped, with 6 rose or white with purple
streaked, recurved petals; early-summer. -Per
107
COR Styrax japonica Slow growing, ~ 2.5 metres
after 18 years, white bell-shaped flowers in the summer - Shrub
108 WEA Viburnum betulifolium, spectacular red fruit,
appears to be self-fertile - Shrub
FOOTNOTES
†1. ‘Böhmen’ is pretty hardy and probably a form of dichroanthum ssp. scyphocalyx.
Selfing should give variation as the orange flowered ‘Böhmen’ is a suspected hybrid .
†2.
R. ledebourii,
probably selfed as it flowered earlier than
other lepidotes
†3. “Nancy Steele’, formerly BPT#80-5, yellow
†4. ‘Fireman Jeff’ is (‘The Honourable Jean Marie de Montague’ x ‘Grosclaude’) dark red
flowers
†5. ‘Eino’ is a hardy Finnish hybrid with purple flowers.
†6. ‘Burgundula’
is ‘Azurro’ x ‘Blue Boy’, cross by H. Hachmann.
†7.
‘Hellikki’ is a Finnish red hybrid.
†8. ‘Goldprinz’ syn. ‘Goldschatz’,
good yellow, (‘Festivo’ x ‘
†9.
‘Matador’, red flowers, R. griersonianum x R. strigillosum,
cross by Lord Aberconway.
†10.
‘
†11. ‘Christian’ has large yellow flowers. Parentage ? Grows at
†12.
R. fortunei ‘Best Form’, aka
‘German Form’, found from Hobbie Rhododendronpark.
†13.
‘Mikkeli’ aka ‘
†14. ‘Pekka’ is a hardy Finnish hybrid
†15.
‘July Jester’ = (R. prunifolium ‘
†16.
Wash seeds thoroughly in soapy
warm water, rinse, soak for 24 hours in lukewarm water, sow
¼" deep.
†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. All
contributions from K. Thequist are c.p.
†19. Hellebore seed may
take 6-18 months (or more) to germinate; however, if you start with fresh
seed and sow it soon after harvest, then your chances of achieving high germination
percentages are quite good. For example, sowing fresh seed
in damp media at room temperature for eight weeks followed by a cool period in
the refrigerator for another eight weeks or so will yield good results. We shall try to ship “treated”
seed.
NOTES
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 be labelled as being “ex” that species or cultivar.
2. The 2011 Seed List will be posted on the Internet with insertion of images and links to help in your decision-making.
http://www.willowgarden.net
Follow the links for ARHS Seed Exchange.
A link to the list will be inserted on the
Atlantic Rhodo site. www.atlanticrhodo.org
3. Also see
the ARHS website for an article on growing rhododendrons from seed.
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:
Rhododendron Species Foundation
Hirsutum, Rhododendron Database
Updated by
