ARS seed 2026
hp – Hand pollinated seeds.
cp – Controlled pollination. (Stigma covered after pollination)
op – Open pollination.
cw – Collected in the wild.
com – Companion plants
Alphabetically Sorted Seed List 2026
ARS Online Catalog : ordering of seeds/bestilling af frø
Chris Trautmann, Oregon, USA
26-001 hp Cold Steel x Mallotum Note: Cold Steel is macabeanum x Laramie
26-002 hp (Golden Horseshoe x macabeanum) x Laramie
26-003 hp montroseanum x mallotum
26-004 hp Sir George Martin X macabeanum ‘Bones’ Note: SGM = Killer Diller x Avery (Chris Trautman Cross)
Patricia Swift, Oregon, USA
26-005 cw macrophyllum
Frederick Thurber, Massachusetts, USA
26-006 hp Alena X serotinum RSF 99/120
26-007 hp auriculatum RSF 1458 X glanduliferum RSF 07/329
26-008 hp auriculatum RSF 1458 X maeorense RSF 13/32
26-009 hp Beauty of Halesite X glanduliferum RSF 99/671
26-010 hp Bob Furman’s Big Yellow X strigillosum RSF 82/125
26-011 hp Cheryl’s Choice X auriculatum (pink) RSF 81/025
26-012 hp Cheryl’s Choice X Dexter’s Peppermint
26-013 hp Cocheco Sweet Perfume X glanduliferum RSF 98/578
26-014 hp Dexter’s Honeydew X Dexter’s Spice
26-015 hp Dexter’s Peppermint X auricultum (pink) RSF 81/025
26-016 hp Dexter’s Peppermint X Dexter’s Spice
26-017 hp Dexter’s Peppermint X glanduliferum (pink) RSF 98/671
26-018 op fortunei RSF 2942 1
26-019 hp fortunei RSF 2942 X glanduliferum RSF 98/578
26-020 cw maximum Note: Manchester Cedar Swamp Preserve, New Hampshire26-021 hp maximum ‘Red Picotee’ X protistum RSF 00/192
26-022 hp maximum ‘Red Picotee’ X selfed
26-023 hp Roseum Elegans X Purple Splendor
26-024 hp Roseum Elegans X serotinum RSF 99/120
26-025 hp Thea Ann X glanduliferum RSF 07/329
26-026 hp Thea Ann X glanduliferum RSF 98/578
26-027 hp Thea Ann X Dexter’s Spice
1. Next to various Cowles hybrids such as Pastel Perfume, Apricot Gameo Kobuki, etc.
Mike McCullough, California, USA
26-028 cw occidentale, Big Basin Redwoods State Park
26-029 cw occidentale from San Francisco Botanical Garde
David Cain, Maine, USA
26-030 hp Barbara Mederios X Goldprinz
26-031 hp Barbara Mederios X Hardgrove’s Deepest Yellow
26-032 hp [(brachycarpum x Roseum Elegans) x yeufengense] X Dark Lord
26-033 hp [(brachycarpum x Roseum Elegans) x yeufengense] X Mark’s Purple
26-034 hp Hardgrove’s Deepest Yellow X Goldprinz
26-035 op Larraine (cold hardy yellow)
26-036 hp (maximum red picotee x calophytum) X macabeanum hyrbid
26-037 hp Scintillation X yeufengense x Sally Fuller)
26-038 hp The General X (yeufengense x Sally Fuller)
26-039 op Vinecrest
26-040 hp Wheatley X Firestorm
26-041 hp Wheatley x macabeanum hybrid
26-042 op yellow Hardgrove type seedling DC 25-108
26-043 op yellow Hardgrove type seedling DC 25-116
26-044 hp (yeufengense x Sally Fuller) X Hardgrove’s Deepest Yellow
Jack Looye, Nova Scotia, Canada
26-045 hp (Abe Arnot x Calsap) X sibling
26-046 hp Blue’s Music X Shocking Blue*
26-047 hp Blue Spectacle x Blue Moon**
26-048 hp Hachmann’s Charmant X Elegant Candy
26-049 hp {(Joan Newsome x Casanova) x [Golden Horseshoes x (Sandra Hinton x Casanova)]} X Helen Vieira
26-050 hp smirnowii X (Neon x Casanova) Note: The smirnowii is a petaloid.
26-051 hp (Unknown Hardy Orange x Golden Horseshoes #1) X (Unknown Hardy Orange x Golden Horseshoes #2 )
26-052 hp Whitney’s Red X [(brachycarpum variety Roseum X didimum ) X Anna Delp]
* Blue’s Music is a (tetraploid carolinianum x Blue Diamond) X Starry Night
Shocking Blue is a (tetraploid carolinianum x fastiganum F2) X Crater Lake
** Sibling cross of [(tetraploid carolinianum x Blue Diamond) x Starry Night)] X Blue Baron
Peter Norris, Massachusetts, USA
26-053 hp America X (yuefengense x fortunei) Note: Compact with Great Foliage26-054 hp Apricot Fantasy X Wheatley
26-055 hp Belva’s Joy X Shortcut*
26-056 hp Ben Moseley X Shortcut* Note: Dark blotch with great foliage
26-057 op Bob Furman’s Big Yellow
26-058 hp [(catawbiense x wardii) xvernicosum] X trilby Note: multicolor yellow and red
26-059 hp Extraordinaire (Greer) X Loderi Venus Note: Large interesting trusses
26-060 op Faithiae Note: isolated and very late so pure26-061 hp Furnival’s Daughter x Shortcut*
26-062 hp Hachmann’s Charmant x Shortcut ***
26-063 hp Helen Everitt X (yuefengense x fortunei) Note: possibly fragrant
26-064 hp Henry’s Red X Shortcut**
26-065 hp Horizon Lakeside Xvernicosum v. Rock
26-066 hp Jean Marie de Montague X HP260-67****
26-067 hp Loderi Venus X Sally Fuller
26-068 hp Loderi Venus X vernicosum Note: Large, multicolored trusses
26-069 hp Mary Guthlein X vernicosum v. Rock Note: Multicolor yellow and salmon
26-070 hp Mary Belle X Shortcut Note: Multicolor with great foliage26-071 hp Mrs. W R Coe (Dexter) X (yuefengense x fortunei) Note: compact, blotch with great foliage
26-072 hp Olin Dobbs X (yuefengense x fortunei) Note: Compact deep purple with great foliage
26-073 hp Orange Leopard X yeufengense Note: Compact, multicolor, great foliage
26-074 hp (Red River x auriculatum) X yuefengense26-075 hp Sally Fuller X Loderi Venus Note: Large fragrant trusses
26-076 hp Trilby X Shortcut**
26-077 hp Virginia Richards X polytrichum Note: Large trusses, interesting foliage
26-078 hp Vulcan’s Flame X Shortcut**
26-079 hp War Dance X Shortcut* Note: compact Red with great foliage
26-080 hp War Dance X Frank Galsworthy Note: multicolor violet/orange/red
26-081 hp Warlock X Shortcut **
26-082 comp Franklinia alatamaha Note: Beautiful small flowering tree with red fall color MARK stratify
26-083 comp Lobelia cardinalis Note: Wild collected
26-084 comp Podophyllum plicanthum Note: Chinese Mayapple likes damp
26-085 comp Stewartia pseudocamellia ‘Pewter Form’ Note: Pink fruit and stems
26-086 comp Stewartia rostrata Note: Beaked stewartia, red tipped seed pods
26-087 comp Stewartia serrata
* Shortcut is yuefengense x platypodum
** Red with Great foliage
*** More compact with blotch, great foliage
**** HP260-67 is a gorgeous Dexter with large deep green foliage
Betty Ann Addison, Minnesota, USA
26-088 hp April Dawn X mucronulatum*
26-089 op brachcarpum compactum “Green as Grass” Note: Isolated plant
26-090 comp Ghost Fern Note: Painted X Lady Fern
* April Dawn is a coral sport of April Rose. Cross hardy to -30F
Robert Zimmerman, Washington, USA
26-091 hp barbatum
26-092 hp decorum
26-093 hp facetum BASE #9701 x sibling Note: Fragrant and marginally hardy
26-094 hp kesangiae
26-095 hp macabeanum
26-096 hp rex
26-097 hp ririei
Michael Medeiros, Rhode Island, USA
26-098 op dauricum album
Mick Stillwell, Virginia, USA
26-099 hp (Albert Close x degronianum Yamoto form) X (Glenolden X Dexter’s Orange)
26-100 hp (Caroline x Dexter’s Peppermint) X Pupureum Elegans
26-101 op chapmanii Note: dwarf, convoluted growth
26-102 hp Rockbridge X [(Cadis x Autum Gold) x Snow Shimmer]
Thomas Chen, Massachusetts, USA
26-103 hp Big Deal X Kimberly Goal: Keep williamsianum appearance but improve hardiness and adaptability
26-104 hp Francesco X Crimson Pippin Goal: Compact, red, zone 5
26-105 hp Francesco X Tortoiseshell Wonder Goal: hardy orange, Zone 5
26-106 hp Haaga X (hyperythrum x packysanthum) Goal: heat & cold tolerance Zone 5
26-107 hp Lavender Haze X Am I Blue Goal: purple indumented, Zone 6
26-108 hp Picobello X Big Deal Goal: compact, hardy with white flowers/dark blotch
26-109 hp Rudy Berg X Midnight Song Goal: Red flowers with red new foliage Zone 6
26-110 hp Scintillation X Midnight Song Goal: Scintillation foliage with reddish flowers Zone 6
26-111 hp Scintillation X Scarlet Leopard Goal: Foliage, speckled flowers, zone 6
26-112 hp Tortoiseshell Wonder X Fashion Plate Goal: Zone 6 hardy orange
Rhododendron Species Botanical Garden, Washington, USA
26-113 hp aberconwayi
26-114 hp argrophyllum ssp. hypoglaucum
26-115 hp barbatum
26-116 hp benhallii
26-117 hp coeloneurum
26-118 hp coryanum
26-119 hp crinigerum
26-120 hp davidii
26-121 hp decorum
26-122 hp denudatum
26-123 hp edgeworthii
26-124 hp falconeri ssp. eximium
26-125 hp flinckii
26-126 hp fortunei ssp.discolor (white with green blotch)26-127 hp fortunei ssp.discolor withdrawn
26-128 hp habrotrichum
26-129 hp huanum
26-130 hp jinganshanicum
26-131 hp kesangiae
26-132 hp lanatoides
26-133 hp lanatum
26-134 hp luteiflorum
26-135 hp megacalyx
26-136 hp nipponicum
26-137 hp niveum
26-138 hp ochraceum
26-139 hp orbiculare ssp. orbiculare
26-140 hp oreotrephes
26-140A hp pentaphyllum
26-141 hp platypodum
26-142 hp polytrichum
26-143 hp qiaojiaense
26-143A hp quinquefolium
26-144 hp recurvoides
26-145 hp rex ssp. fictolacteum
26-146 hp rex ssp.rex
26-147 hp rothschildii
26-148 hp schlippenbachii
26-149 hp sinogrande
26-150 hp strigillosum
26-151 hp sutchuenense
26-152 hp thayerianum
26-153 hp thomsonii
26-154 hp wardii
26-154A comp Enkianthus serrulatus
Jaakko Saarinen, Finland
26-155 op arborescens (Cheat Bridge form) – isolated group, but may be slightly contaminated by calendulaceum pollen
26-156 cp brachycarpum f. nemotoanum × decorum NN 907 (white)
26-157 cp yakushimanum ‘Koichiro Wada’ × souliei JN-12-297 (white)
26-158 cp yakushimanum ‘Koichiro Wada’ ×decorum NN 907 (white)
Tomasz Cyba, Poland
26-159 hp Rabatz x arboreum
Lloyd Gilmore, British Columbia, Canada
26-160 hp [Champagne Lace x (Butter Brickle x Marie Starks)] X Self
26-161 hp [(Dexter’s Spice x neriiflorum ‘Rosevallon’) x (Sooke Clouds x neriiflorum ‘Rosevallon’)] X
[(Sooke Clouds xsanguineum ssp. haemaleum)#2 x Pretty Baby)]
26-162 hp Golfer X Cherries and Merlot
26-163 hp Golfer X orchraceum RSF 4209
26-164 hp Golfer X Snugbug Note: Snugbug is a tsariense hybrid)
26-165 hp (Horizon Lakeside x Cayenne) X [(Sooke Clouds x sanguineum ssp.hemaleum)#2 x Pretty Baby]
26-166 hp Jamaica Orange X [Champagne Lace x (Butter Brickle x Marie Starks)]
Note: last cross listed is a dwarf with hose-in-hose yellow flowers
26-167 hp [(Jeda x sanguineum ssp. haemaleum)#2 x Black Widow] X Golfer
26-168 hp [(Jesa x sanguineum ssp. haemaleum)#2 x Black Widow] X Snugbug
26-169 hp Many Moons X Mrie Starks
26-170 hp Marie Starks X (Many Moons x Jeda) Note: in Memory of Paul Wurz
26-171 hp (Noyo Brave x Peter Faulk) X Golfer
26-172 hp Pretty Baby X Golfer
26-173 hp protistum X kesangiae Note: Hopefully a hardier larger leaf type
26-174 hp Senator Jackson X (decorum Cox 732 2006 x Dexter’s Sprice)
26-175 hp Senator Jackson X Golfer
26-176 hp Senator Jackson X [(Jeda x sanguineum) x Pretty Baby]
26-177 hp Snugbug X Cherries and Merlot
26-178 hp (Sooke Clouds x neriiflorum ‘Rosevallon’) X [(Jeda x sanguineum ssp. haemaleum)#2 x Pretty Baby]
26-179 hp (Sooke Clouds x neriiflorum ‘Rosevallon’) X [(Party Orange x Parksville Sunset) x (Jeda x Ostbo’s Red Elizabeth)]
26-180 hp (Sooke Clouds x neriiflorum ‘Rosevallon’) X Scented Sunrise
26-181 hp [(Sooke Clouds x sanguineum)#2 x Pretty Baby]* X (decorum Cox 732 2006 x Dexter’s Spice)**
* Best Scented plant
** Best of 8 plants
Walter Ostrom, Nova Scotia, Canada
26-182 cw aureum
Ron Rabideau, Massachusetts, USA
26-183 op “red’ maximum, second generation, plant #2. Note: Medium pink flower, stems are beet red. Leaves with red veins.
Open pollinated, but only two siblings nearby in bloom, no other maximums or other plants.
Chris Trautmann, Oregon USA 26-001 26-004
Patricia Swift, Oregon, USA 26-005 26-005
Frederick Thurber, Massachusetts, USA 26-006 26-027
Mike McCullough, California, USA 26-028 26-029
David Cain, Florida USA 26-030 26-044
Jack Looye, Nova Scotia, Canada 26-045 26-052
Peter Norris, Massachusetts, USA 26-053 26-087
Betty Ann Addison, Minnesota, USA 26-088 26-090
Robert Zimmerman, Washington, USA 26-091 26-097
Michael Medeiros, Rhode Island, USA 26-098 26-098
Mick Stillwell, Virginia, USA 26-099 26-102
Thomas Chen, Massachusetts, USA 26-103 26-112
Rhododendron Species Botanical Garden, Washington, USA 26-113 26-154
Jaakko Saarinen, Finland 26-155 26-158
Tomasz Cyba, Poland 26-159 26-159
Lloyd Gilmore, British Columbia, Canada 26-160 26-181
Walter Ostrom, Nova Scotia, Canada 26-182 26-182
Ron Rabideau, Massachusetts, USA 26-183 26-183