| Hostaname | REG | Origin |
| H. 'A 1-A-Day Delight' Ed Elslager 2003 | R | 'Jim Wilkins' hybrid |
| H. 'A B-1 Bomber' Ed Elslager 2002 | R | 'Sea Prize' hybrid |
| H. 'A Big Splash' Ed Elslager 2004 | R | 'Dorothy Benedict' selfed |
| H. 'A Blue Streak' Ed Elslager 2001 | R | 'First Impressions' x hypoleuca |
| H. 'A Lady in Blue' Ed Elslager 2004 | R | 'William Lachman' x hypoleuca |
| H. 'A Many-splendored Thing' Ed Elslager 1999 | R | 'Dorothy Benedict' x hypoleuca |
| H. 'A Very Good Boy' Ed Elslager 2005 | R | x ('Dorothy Benedict') seedling |
| H. 'Aachen' Alex Malloy 2005 | R | 'Zebra' hybrid |
| H. 'Aardvark' Dennis P. Savory 1991 | R | 'Aspen Gold' hybrid |
| H. 'Abba Alive' Paul Aden 1990 | R | 'Aden 81-B1' x 'Aden 83-B4' |
| H. 'Abba Aloft' Paul Aden 1990 | R | 'Sun Power' sport |
| H. 'Abba at Large' Paul Aden 1990 | R | 'Sun Power' sport |
| H. 'Abba Blue Plus' Paul Aden 1990 | R | 'Aden 81-B1' x 'Aden 82-B5' |
| H. 'Abba Dabba Do' Tony Avent 1998 | R | 'Sun Power' sport |
| H. 'Abba Dew' K. Brill 1999 | R | 'Sun Power' sport |
| H. 'Abba Fit' Paul Aden 1990 | R | 'Aden 81-B3' x 'Aden 83-B4' |
| H. 'Abba Fragrant Cloud' Paul Aden 1990 | R | 'Aden 80-F3' x 'Aden 78-F5' |
| H. 'Abba Little Showoff' Paul Aden 1990 | R | 'Amy Aden' x 'Aden 78-Y2' |
| H. 'Abba Nova' Paul Aden 1990 | R | 'Aden 78-G5' x 'Aden 80-B2' |
| H. 'Abba Spellbinder' Paul Aden 1990 | R | 'Aden 77-B6' x 'Aden 79-B1' |
| H. 'Abba Tops' Paul Aden 1990 | R | 'Aden 77-G4' x 'Aden 78-G3' |
| H. 'Abbey Pond Cascades' Alex Malloy 2004 | R | 'Cascades' seedling |
| H. 'Abby' Peter Ruh 1990 | R | 'Gold Drop' sport |
| H. 'Abiqua Ambrosia' Walden West 1987 | R | unknown |
| H. 'Abiqua Ariel' Walden West/J. Hyslop 1999 | R | 'Aspen Gold' x (x 'Golden Chimes') |
| H. 'Abiqua Aries' Walden West/J. Hyslop 1999 | R | 'Aspen Gold' x 'Golden Chimes' |
| H. 'Abiqua Blue Crinkles' Walden West/C. Purtymun 1999 | R | unknown |
| H. 'Abiqua Blue Edger' Walden West 1987 | R | unknown |
| H. 'Abiqua Blue Jay' Walden West 1988 | R | unknown |
| H. 'Abiqua Blue Madonna' Walden West 1988 | R | unknown |
| H. 'Abiqua Blue Shield' Walden West 1988 | R | sieboldiana hybrid |
| H. 'Abiqua Delight' Walden West/A. Summers 1999 | R | unknown |
| H. 'Abiqua Drinking Gourd' Walden West 1989 | R | 'Tokudama' x sieboldiana |
| H. 'Abiqua Elephant Ears' Walden West/C. Purtymun 1999 | R | (x sieboldiana) hybrid |
| H. 'Abiqua Gold Shield' Walden West 1987 | R | 'White Vision' hybrid |
| H. 'Abiqua Ground Cover' Walden West 1988 | R | unknown |
| H. 'Abiqua Hallucination' Walden West/J.Hyslop/C. Purtymun 1999 | R | 'Tokudama Flavocircinalis' sport |
| H. 'Abiqua Miniature' Walden West 1988 | R | unknown |
| H. 'Abiqua Moonbeam' Walden West 1987 | R | 'August Moon' sport |
| H. 'Abiqua Pagoda' Walden West 1989 | R | sieboldiana hybrid |
| H. 'Abiqua Parasol' Walden West 1987 | R | sieboldiana 'Elegans' hybrid |
| H. 'Abiqua Recluse' Walden West 1989 | R | 'White Vision' x 'Sum and Substance' |
| H. 'Abiqua Trumpet' Walden West 1987 | R | unknown |
| H. 'Academy Ametrine' S. Chamberlain 2005 | R | 'Sum and Substance' hybrid |
| H. 'Academy Another' S. Chamberlain 2004 | R | 'Francee' sport |
| H. 'Academy Aureate Piffle' S. Chamberlain 2006 | R | |
| H. 'Academy Blue Titan' S. Chamberlain 1999 | R | montana x sieboldiana 'Elegans' |
| H. 'Academy Blushing Recluse' S. Chamberlain 1999 | R | 'Abiqua Recluse' sport |
| H. 'Academy Bonfire Glade' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Brobdingnagian Viridity' S. Chamberlain 2006 | R | |
| H. 'Academy Celeborn' S. Chamberlain 2000 | R | (x 'Ginko Craig') hybrid |
| H. 'Academy Chetwood' S. Chamberlain 2005 | R | x ('Ginko Craig') hybrid |
| H. 'Academy Devon Moor' S. Chamberlain 2001 | R | 'Devon Mist' hybrid |
| H. 'Academy Dimholt' S. Chamberlain 2005 | R | x ('Ginko Craig') hybrid |
| H. 'Academy Fangorn Forest' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Fire' S. Chamberlain 1997 | R | 'Francee' sport |
| H. 'Academy Flaxen Spades' S. Chamberlain 2002 | R | 'Vanilla Cream' hybrid |
| H. 'Academy Flora' S. Chamberlain 1999 | R | unknown |
| H. 'Academy Galadriel' S. Chamberlain 2000 | R | (x 'Ginko Craig') hybrid |
| H. 'Academy Gold Codswallop' S. Chamberlain 2006 | R | |
| H. 'Academy Golden Papoose' S. Chamberlain 2004 | R | unknown |
| H. 'Academy Grass Clippings' S. Chamberlain 2005 | R | 'Allegan Fog' seedling |
| H. 'Academy Isengard' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Kakistocracy' S. Chamberlain 2005 | R | 'Pizzazz' seedling |
| H. 'Academy Lemon Knoll' S. Chamberlain 2006 | R | |
| H. 'Academy Lothlórien' S. Chamberlain 2004 | R | 'Ginko Craig' selfed |
| H. 'Academy Mallorn' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Mavrodaphne' S. Chamberlain/H. Chamberlain 2000 | R | 'Devon Mist' hybrid |
| H. 'Academy Mirkwood' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Muse' H. Chamberlain/S. Chamberlain 1997 | R | unknown |
| H. 'Academy Nazgul' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Palantir' S. Chamberlain 2003 | R | "'Ginko Craig' F1" hybrid |
| H. 'Academy Redundant' S. Chamberlain 1998 | R | 'Fortunei Aureomarginata' sport |
| H. 'Academy Rivendell' S. Chamberlain 2005 | R | x ('Ginko Craig') hybrid |
| H. 'Academy Shiny Vase' S. Chamberlain 2001 | R | unknown |
| H. 'Academy Tousled Turkey' S. Chamberlain 2001 | R | 'Lucy Vitols' hybrid |
| H. 'Academy Verdant Spades' S. Chamberlain 2003 | R | 'Vanilla Cream' hybrid |
| H. 'Academy Verdant Verge' S. Chamberlain 2003 | R | 'Yakushima Mizu' hybrid |
| H. 'Academy Weathertop' S. Chamberlain 2005 | R | x ('Ginko Craig') seedling |
| H. 'Academy Wonky Balderdash' S. Chamberlain 2006 | R | |
| H. 'Ace of Spades' E. Lunsford 1993 | R | 'Blue Wedgwood' hybrid |
| H. 'Achy Breaky Heart' Jim Schwarz 1996 | R | unknown |
| H. 'Ada Reed' Natalee Suggs 1988 | R | 'August Moon' x 'Sun Glow' |
| H. 'Aesop' Doug Beilstein/Alex Malloy 2005 | R | 'Neat Splash' seedling |
| H. 'Aestival Festival' Ursula Syre-Herz 1996 | R | unknown |
| H. 'Afternoon Delight' M. Zilis/L. Lombardo 2003 | R | 'High Noon' sport |
| H. 'Ahamo Gold' Julia Geissler 1970 | R | sieboldiana hybrid |
| H. 'Ahwaneeh' Ursula Syre-Herz 1990 | R | montana macrophylla x kikutii |
| H. 'Aidan Bryden Cleghorn' S. Chamberlain 2006 | R | |
| H. 'Aksarben' Julia Geissler/Peter Ruh 1988 | R | 'Tokudama' x sieboldiana |
| H. 'Alabama Bowl' Natalee Suggs 1986 | R | sieboldiana 'Elegans' x 'Big Mama' |
| H. 'Alabama Gold' Natalee Suggs 1986 | R | 'Golden Waffles' hybrid |
| H. 'Aladdin's Lamp' Dick & J. Ward 1996 | R | unknown |
| H. 'Alan Titchmarsh' R. & M. Ford 2006 | R | 'Striptease' sport |
| H. 'Alaskan Halo' Peter Ruh 1997 | R | 'Fortunei Hyacinthina' sport |
| H. 'Albert Lea' Peter Ruh 1999 | R | 'Maple Leaf' sport |
| H. 'Alex Summers' Vic Santa Lucia 1989 | R | 'Gold Regal' sport |
| H. 'Alexizz Madison' S. Xavier-Sakr 2005 | R | 'Pandora's Box' sport |
| H. 'Alice Blue Gown' E. Elslager 2002 | R | 'Dorothy Benedict' hybrid |
| H. 'Alice Gladden' Dick & Jane Ward 1998 | R | 'White Vision' x montana f. macrophylla |
| H. 'Alice in Wonderland' Alex Malloy 2001 | R | 'Flamboyant' x 'Banana Sundae' |
| H. 'Alinghi' L. Hirsbrunner 2003 | R | 'Mountain Snow' hybrid |
| H. 'Alison' D. & J. Ward 2000 | R | 'High Noon' x 'Noah's Ark' |
| H. 'Aliyah's Grace' Stuart Asch 2004 | R | pycnophylla seedling |
| H. 'All Jazzed Up' L. Powell 2000 | R | 'Snow Crust' sport |
| H. 'All Star' D. Aiello 2005 | R | 'Antioch' sport |
| H. 'All that Jazz' Olga Petryszyn 2006 | R | 'Christmas Tree Gala' x 'Elatior' |
| H. 'All This and Heaven Too' E. Elslager 2003 | R | "'Dorothy Benedict' F1" hybrid |
| H. 'Allan P. McConnell' McConnell/M. Seaver 1980 | R | nakaiana hybrid |
| H. 'Allegan Emperor' H. Deshane/K. Herrema/P. Ruh 2000 | R | nigrescens hybrid |
| H. 'Allegan Fog' K. Herrema/P. Ruh 2000 | R | 'Fortunei Aurea' hybrid |
| H. 'Allegan Gent' H. Deshane/K. Herrema/P. Ruh 2000 | R | 'Northern Halo' sport |
| H. 'Allegheny River' Alex Malloy 2005 | R | 'Tenryu' seedling |
| H. 'Allegiance' C. Helsley 2004 | R | 'Sweet Susan' sport |
| H. 'Alley Oop' Alex Malloy 2001 | R | 'Fortunei Aoki' sport |
| H. 'Alleyne Cook' A. Cook/D. Hodgson 2003 | R | 'Fortunei Hyacinthina' sport |
| H. 'Alma' Gus Krossa/Peter Ruh 1995 | R | unknown |
| H. 'Almost' Arthur Wrede 2005 | R | 'Cinnamon Sticks' seedling |
| H. 'Alpine Aire' Eldren W. Minks 1980 | R | 'August Moon' x 'Wogon' |
| H. 'Alpine Dream' Robert P. Savory 1982 | R | venusta x (x venusta) |
| H. 'Alston Glenn' Ray B. Stephens 1998 | R | 'Pearl Lake' x 'Tucker Pucker' |
| H. 'Alvatine Taylor' Fairway Enterprises 1990 | R | 'Lady in Waiting' sport |
| H. 'Am I Blue' Dick & Jane Ward 1998 | R | 'Reginald Kaye' hybrid |
| H. 'Amanuma' Fumio Maekawa 1960/P. Ruh 2002 | R | venusta x capitata |
| H. 'Amazing Grace' Dick & Jane Ward 1999 | R | 'Pin Stripe' x montana f. macrophylla |
| H. 'Amazing Matthew' Stuart Asch 2003 | R | 'Teacher's Pet' sport |
| H. 'Amber Maiden' Walters Gardens 1988 | R | 'Candy Hearts' sport |
| H. 'Amber Tiara' Walters Gardens 1998 | R | 'Grand Tiara' sport |
| H. 'Amber Waves of Grain' E. Elslager 2003 | R | "'Dorothy Benedict' F1" hybrid |
| H. 'American Beauty' Stuart Asch 2000 | R | (x 'Dorothy Benedict') x 'Green Piecrust' |
| H. 'American Dark Angel' Van Wade 1999 | R | 'American Green Angel' sport |
| H. 'American Dream' Van Wade 1999 | R | 'High Fat Cream' sport |
| H. 'American Eagle' Van Wade 1999 | R | 'Zounds' sport |
| H. 'American Glory Be' Van Wade 1999 | R | 'Paul's Glory' sport |
| H. 'American Gold Edge' Van Wade 1999 | R | unknown |
| H. 'American Halo' Van Wade 1999 | R | 'Northern Halo' sport |
| H. 'American Icon' Hans Hansen 2004 | R | 'Choo Choo Train' sport |
| H. 'American Idol' Randy Goodwin 2005 | R | 'Sum and Substance' sport |
| H. 'American Masterpiece' Van Wade 1999 | R | 'Northern Mist' sport |
| H. 'American Misty' Van Wade 2005 | R | 'American Masterpiece' sport |
| H. 'American Mohican Halo' Van Wade 2000 | R | 'Northern Halo' sport |
| H. 'American Ruffled Heart' V. Wade 2000 | R | 'Blue Seer' hybrid |
| H. 'American Sweetheart' Hans Hansen 2002 | R | 'Sea Thunder' sport |
| H. 'American Tisch Breeder' V. Wade/E. Elslager 2002 | R | 'Tisch #3-4' sport |
| H. 'Americana' Walters Gardens 2006 | R | 'Loyalist' sport |
| H. 'Amethyst Blue' Charles R. Seaver 1996 | R | 'Sea Lotus Leaf' hybrid |
| H. 'Amethyst Chip' R. & D. Benedict 2000 | R | 'Purple Verticulated Elf' selfed |
| H. 'Amethyst Facet' H. & D. Benedict/D. Dean 2003 | R | 'Purple Verticulated Elf' x 'Purple Verticulated Elf' |
| H. 'Amethyst Jewel' P. Banyai 1992 | R | rupifraga hybrid |
| H. 'Amethyst Joy' H. Sugita/P. Ruh 1999 | R | kiyosumiensis x pycnophylla |
| H. 'Amy Aden' Paul Aden 1980 | R | 'Fascination' x 'High Fat Cream' |
| H. 'Amy Elizabeth' Mark Zilis 2003 | R | 'Abby' sport |
| H. 'Amy's Green' Van Wade 1999 | R | unknown |
| H. 'Amy's Hope' R. Snyder 2000 | R | 'Norwalk Chartreuse' sport |
| H. 'An Old Smoothie' E. Elslager 2003 | R | 'William Lachman' hybrid |
| H. 'Andrew' Hans Hansen 2006 | R | 'Blue Mammoth' sport |
| H. 'Andrew Jackson' H. Sugita/P. Ruh/M. Zilis/ P. & J. Ruh 2001 | R | unknown |
| H. 'Andy Taylor' Tony Avent 1993 | R | 'August Moon' x 'Tardiflora' |
| H. 'Angel Harp Strings' Ed Elslager 2005 | R | 'Blue Angel' sport |
| H. 'Angel Wings' Jane & Bernie Diesen 1998 | R | unknown |
| H. 'Anglo Saxon' Alex Malloy 2001 | R | 'Crepe Suzette Streaked' x 'Halcyon' |
| H. 'Ani Machi' Japan/P. & J. Ruh 2002 | R | unknown |
| H. 'Ann Kulpa' John Kulpa 1999 | R | 'Pin Stripe Sister' hybrid |
| H. 'Anna Boynton' G. Heinke 2005 | R | 'Dorothy Benedict' seedling |
| H. 'Anna Lindh' L. Kósa 2005 | R | unknown |
| H. 'Anne' G. Heemskerk 2005 | R | 'Fortunei Aureomarginata' sport |
| H. 'Anne Arett' Mrs. Fred Arett 1975 | R | 'Subcrocea' sport |
| H. 'Antioch' Cynthia Tompkins/Hofer/Ruh 1979 | R | 'Fortunei' sport or hybrid |
| H. 'Antoinette' Bob Kuk 2000 | R | 'Squire Rich' sport |
| H. 'Appalachian Beauty' M. Zilis/ECGC Distributers 2003 | R | 'Abiqua Recluse' sport |
| H. 'Appalachian Spring' Alex Malloy 2004 | R | (x 'Beatrice') sport |
| H. 'Applause' Hans Hansen/Tony Avent 2006 | R | 'Edge of Night' sport |
| H. 'Apple Court' P. Scolnik 1998 | R | 'Ani Machi' sport |
| H. 'Apple Green' Ken Anderson 1982 | R | nakaiana seedling |
| H. 'Aqua Velva' Kevin C. Vaughn 1983 | R | ('Polly Bishop' x 'Blue Lace') x 'Summer Fragrance' |
| H. 'Arc de Triomphe' Ed Elslager 2000 | R | 'Foxy Doxy' x hypoleuca |
| H. 'Arch Duke' Ran Lydell 2000 | R | hypoleuca x 'Cartwheels' |
| H. 'Archangel' Mark Zilis 2003 | R | 'Halo' sport |
| H. 'Arctic Circle' Chet Tompkins 1985/P. & J. Ruh 2002 | R | unknown |
| H. 'Arctic Rim' Ransom Lydell 1993 | R | 'Fortunei Hyacinthina' sport |
| H. 'Arctic Sunset' P. & J. Ruh 2005 | R | 'Fortunei Hyacinthina' sport |
| H. 'Arett's Wonder' Anne Arett/AHS 1986 | R | sieboldiana 'Elegans' hybrid |
| H. 'Aristocrat' Walters Gardens 1997 | R | 'Hadspen Blue' sport |
| H. 'Arkansas Lad' C. D. Metzger 2005 | R | 'Breeders Choice' seedling |
| H. 'Arnold Black' Dick & Jane Ward 2004 | R | 'White Vision' x montana f. macrophylla |
| H. 'Artemis' T. Donahue/A. Malloy 2001 | R | unknown |
| H. 'Artist's Palette' Kuk's Forest 1986 | R | 'Neat Splash' hybrid |
| H. 'Asahi Comet' Kato/Zumbar 1984 | R | longissima sport |
| H. 'Asahi Sunray' Kato/Zumbar 1984 | R | longissima sport |
| H. 'Aspen Gold' Vivian Grapes 1970/AHS 1986 | R | 'Tokudama' hybrid |
| H. 'Athena' Bob Hird 2005 | R | 'Aphrodite' sport |
| H. 'Atlantis' Hans Hansen/Tony Avent 2004 | R | 'Abba Dabba Do' sport |
| H. 'August Moon' R. Langfelder/A. Summers 1968/P. Ruh 1996 | R | sieboldiana hybrid |
| H. 'Augustus' S. Tylinsky/A. Malloy 2003 | R | 'Sea Fire' hybrid |
| H. 'Aurora Borealis' Wayside Gardens 1986 | R | sieboldiana 'Elegans' sport |
| H. 'Austin Dickinson' William & Eleanor Lachman 1992 | R | 'Resonance' x plantaginea |
| H. 'Avalanche' Randy Goodwin 2000 | R | 'Warwick Choice' hybrid |
| H. 'Avery Angel' B. Tiffany 2005 | R | unknown |
| H. 'Avocado' Jane & Bernie Diesen 1998 | R | 'Guacamole' sport |
| H. 'Awakening Angel' F. Nyikos 2005 | R | 'Mikawa-no-yuki' x 'Uncle John' |
| H. 'Awesome Illusion' S. Xavier-Saks 2002 | R | 'Edge of Night' sport |
| H. 'Aztec Treasure' Kevin C. Vaughn 1987 | R | 'Golden Waffles' x (x 'Rough Waters') |
| H. 'Azure Chalice' Ursula Syre-Herz 1996 | R | unknown |
| H. 'Azure Cherub' Europe/P. Ruh 2002 | R | unknown |
| H. 'Azure Frost' B. Treichel 2006 | R | |
| H. 'Azure Mediterranean' C. Helsley 1999 | R | unknown |
| H. 'Azure Snow' Peter Ruh 1991 | R | hypoleuca seedling |
| H. 'Baby Blue Eyes' Bob Solberg 2006 | R | 'Cody' x 'Dorset Blue' |
| H. 'Baby Boomer' E. Elslager 2002 | R | 'Sea Prize' x montana 'Chirifu' |
| H. 'Baby Bunting' Robert P. Savory 1982 | R | 'Rough Waters' hybrid |
| H. 'Bacchanal' Leroy Davidson/Peter Ruh 1991 | R | nakaiana seedling |
| H. 'Bacon and Eggs' E. Elslager 2001 | R | 'Kevin Vaughn' hybrid |
| H. 'Ballerina' Robert P. Savory 1982 | R | venusta hybrid |
| H. 'Balloons' Belle Gardens 1994 | R | 'Anne Arett' hybrid |
| H. 'Banana Boat' Eleanor and William Lachman 1991 | R | 'Lachman 81-9' x 'Reversed' |
| H. 'Banana Muffins' Jim Schwarz 1996 | R | unknown |
| H. 'Banana Pudding' Tony Avent 2005 | R | 'Peter Pan' x 'Sun Power' |
| H. 'Banana Sundae' Eldren W. Minks 1980 | R | (x 'Fortunei') sport |
| H. 'Band of Gold' Ed Elslager 1999 | R | 'Dorothy Benedict' x hypoleuca |
| H. 'Banyai's Dancing Girl' Pauline Banyai 1987 | R | 'Blue Boy' hybrid |
| H. 'Barbara' David Stone/Peter Ruh 1987 | R | unknown |
| H. 'Barbara Elizabeth Hoover' C. Owens 2002 | R | 'Sally and Bob' sport |
| H. 'Barbara May' R. Solberg 2004 | R | (pycnophylla x 'Harvest Dandy') x ('Blue Arrow' x 'Sea Fire') |
| H. 'Barbara White' Sandra Bond 1990 | R | 'Tokudama' hybrid |
| H. 'Barbarosa' Alex Malloy 2002 | R | 'Blue Splendor' x rupifraga |
| H. 'Barney Fife' Tony Avent 1993 | R | 'August Moon' x 'Tardiflora' |
| H. 'Battle Star' Randy Goodwin 2006 | R | |
| H. 'Bea's Colossus' C. Tompkins/Walden-West/P. Ruh 2000 | R | unknown |
| H. 'Beat This Blue' E. Elslager 2002 | R | unknown |
| H. 'Beaulah' David Stone/Peter Ruh 1988 | R | unknown |
| H. 'Beckoning' Tim Saville 2002 | R | 'Blue Angel' sport |
| H. 'Bedazzled' Don Dean 1999 | R | 'Little Wonder' x 'Love Pat' |
| H. 'Beer Belly Blues' Rod Kuenster 2006 | R | |
| H. 'Behemoth' Robert P. Savory 1988 | R | montana hybrid |
| H. 'Belinda' R. Simmering/L. Willett 2003 | R | 'Zounds' hybrid |
| H. 'Bell Bottom Blues' Kevin Walek/Naylor Creek 2004 | R | 'Jewel of the Nile' sport |
| H. 'Belle of the Ball' H. Sugita/P. Ruh 1998 | R | kiyosumiensis x pycnophylla |
| H. 'Bells of Edinborough' Robert P. Savory 1993 | R | 'Rim Rock' hybrid |
| H. 'Benedict Arnold' Benedict Arnold 1996 | R | 'Dorothy Benedict' hybrid |
| H. 'Benediction' Rod Lysne 2006 | R | 'Sun Power' x 'Cynthia' |
| H. 'Bengee' B. Harrison/Palmer/R. Bemis/P. Ruh 1999 | R | 'Tokudama' hybrid |
| H. 'Bennie McRae' Natalee Suggs 1989 | R | plantaginea hybrid |
| H. 'Bestman' Dick & Jane Ward 2004 | R | 'Bridegroom' seedling |
| H. 'Betcher's Blue' Betcher/AHS 1986 | R | 'Tokudama' hybrid |
| H. 'Bethel Big Leaf' Clarence O. Lantis 1979 | R | montana hybrid |
| H. 'Betsy King' Frances Williams 1943/AHS 1986 | R | decorata x sieboldii |
| H. 'Bette Davis Eyes' Kevin C. Vaughn 1987 | R | 'Summer Fragrance' x 'Christmas Tree' |
| H. 'Betty' Herb Benedict 1983 | R | nakaiana x ventricosa |
| H. 'Betty Darling' Clarence Owens 1989 | R | unknown |
| H. 'Bewitched' G. Kamp 2001 | R | 'Golden Wheels' sport |
| H. 'Beyond Measure' G. Kamp 2001 | R | 'Sagae' hybrid |
| H. 'Big and Blue' Van Wade 2000 | R | 'Dorothy Benedict' x 'Blue Seer' |
| H. 'Big Bad John' Ed Elslager 2005 | R | (x 'Dorothy Benedict') seedling |
| H. 'Big Boy' Lucille Simpers 1980 | R | montana hybrid |
| H. 'Big Daddy' Paul Aden 1978 | R | sieboldiana x 'Tokudama' |
| H. 'Big Dipper' Bob Kuk 1995 | R | 'Gold Regal' hybrid |
| H. 'Big Hearted' Ralph H. Benedict 1983 | R | nakaiana x 'Zager's Giant' |
| H. 'Big John' Clarence Owens 1986 | R | 'Mira' hybrid |
| H. 'Big Mama' Paul Aden 1978 | R | 'Blue Tiers' x 'Blue Angel' |
| H. 'Big Mamma's House' E. Elslager 2003 | R | "'Dorothy Benedict' F1" hybrid |
| H. 'Big Mo' Ray B. Stephens 1990 | R | montana hybrid |
| H. 'Big Old Bob' S. & S. Zolock 2005 | R | sieboldiana hybrid |
| H. 'Big Pizza Pie' E. Elslager 2001 | R | 'Dorothy Benedict' x 'Maekawa' |
| H. 'Big Sam' Klopping 1963/AHS 1986 | R | montana x sieboldiana |
| H. 'Big Shot' E. Minks/A. Arett 1992 | R | unknown |
| H. 'Big Top' Ed Elslager 2003 | R | 'William Lachman' x hypoleuca |
| H. 'Big Zach' L. Jones 2002 | R | 'Sagae' hybrid |
| H. 'Bigfoot' R. Duback 1998 | R | unknown |
| H. 'Bigga Luigi' Bob Kuk 2002 | R | 'Simply Sharon' sport |
| H. 'Biggie' Ed Elslager 2003 | R | 'Sea Prize' x 'Maekawa' |
| H. 'Biggie's Breeder' E. Elslager 2004 | R | 'Biggie' seedling |
| H. 'Bilben Little Atlantis' W. Bennett 1998 | R | 'Gold Edger' sport |
| H. 'Bill and Eleanor' E. Lachman, T. Schmid 2001 | R | unknown |
| H. 'Bill Brincka' Brincka 1988 | R | 'Opipara' sport |
| H. 'Bill Dress's Blue' W. Dress,/M. Tobey/S. Chamberlain 1999 | R | unknown |
| H. 'Bill Modrak' S. & S. Zolock 2002 | R | 'Regal Rhubarb' hybrid |
| H. 'Bingo' Belle Gardens 1993 | R | 'Tokudama Aureonebulosa' seedling |
| H. 'Birchwood Blue' Shaw 1966/AHS 1986 | R | sieboldiana x 'FRW #382' |
| H. 'Birchwood Elegance' Florence Shaw/AHS 1986 | R | sieboldiana x 'FRW #382' |
| H. 'Birchwood Gem' F. Shaw/P. Ruh 1989 | R | nakaiana hybrid? |
| H. 'Birchwood Gold' Shaw/AHS 1986 | R | 'Sunlight' hybrid |
| H. 'Birchwood Green' Shaw/AHS 1986 | R | sieboldiana x 'FRW #382' |
| H. 'Birchwood Parky's Blue' Shaw/AHS 1986 | R | unknown |
| H. 'Birchwood Parky's Gold' Florence Shaw/AHS 1986 | R | 'Sunlight' hybrid |
| H. 'Birchwood Ruffled Queen' Shaw/AHS 1986 | R | 'Green Piecrust' hybrid |
| H. 'Birds of Happiness' Van Wade 1999 | R | 'Blue Whirls' hybrid |
| H. 'Birth of the Blues' Ed Elslager 2005 | R | "'Dorothy Benedict' F1" seedling |
| H. 'Bitsy Blue' Dennis P. Savory 2000 | R | 'Indigo' x (x 'Bitsy Green') |
| H. 'Bitsy Gold' Robert P. Savory 1985 | R | longissima x "Yellow hybrid" |
| H. 'Bitsy Green' Robert P. Savory 1985 | R | longissima x "Green hybrid" |
| H. 'Bix Blues' R. Simmering 2000 | R | 'Halcyon' x sieboldiana 'Elegans' |
| H. 'Bizarre' Kuk's Forest 1986 | R | 'Kabitan' hybrid |
| H. 'Black Beauty' Kate Carpenter 1984 | R | 'Green Piecrust' hybrid |
| H. 'Black Forest' C. Tompkins/P. & J. Ruh 2005 | R | unknown |
| H. 'Black Hills' Robert P. Savory 1983 | R | 'Green Gold' hybrid |
| H. 'Black Jack Chew' Jim Schwarz 2005 | R | 'Mutant Ninja' sport |
| H. 'Black Pearl' Peter Cross 2001 | R | 'Grand Master' hybrid |
| H. 'Blackfoot' M. Plater-Zyberk/R. Solberg 1994 | R | 'Kabitan' hybrid |
| H. 'Blackjack' Clarence Owens 1990 | R | sieboldiana 'Mira' x sieboldiana |
| H. 'Blast Off' Herb & Dorothy Benedict 1995 | R | 'Mikado' x 'Dorothy Benedict' |
| H. 'Blaue Ruh' H. Sugita/Pete Ruh 2003 | R | unknown |
| H. 'Blaue Venus' Heinz Klose 1988/P. & J. Ruh 2003 | R | tardiflora hybrid |
| H. 'Blaufink' Heinz Klose 1990/P. & J. Ruh 2003 | R | unknown |
| H. 'Blauglut' Heinz Klose 1990/P. & J. Ruh 2003 | R | sieboldiana hybrid |
| H. 'Blaugold' Heinz Klose 1991/P. & J. Ruh 2003 | R | sieboldiana hybrid |
| H. 'Blaumeise' Heinz Klose 1991/P. & J. Ruh 2003 | R | |
| H. 'Blauspecht' Heinz Klose/P. & J. Ruh 2003 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blaze of Glory' E. Elslager 1999 | R | 'Pin Stripe' hybrid |
| H. 'Blazer' Ed Elslager 2005 | R | (x 'Galaxy') seedling |
| H. 'Blazing Saddles' T. Avent 2000 | R | (x 'Beatrice') x 'Blue Umbrellas' |
| H. 'Blessings' Paul Aden 1983 | R | 'Tardiana grex yellow' hybrid |
| H. 'Blissful' G. Johnson/L. Ferguson 2004 | R | 'Neat Splash' x 'Dorset Blue' |
| H. 'Blizzard' Winterberry Farms/J. Anderson 2003 | R | 'Sum and Substance' sport |
| H. 'Blockbuster' E. Elslager 2003 | R | 'Sea Prize' x 'Maekawa' |
| H. 'Blondie' Gretchen Harshbarger 1982 | R | 'Tokudama Aureonebulosa' hybrid |
| H. 'Blood, Sweat and Tears' C. Linder/D. Dean 2000 | R | 'Little Wonder' x 'Aspen Gold' |
| H. 'Bloody Mary' H. Sugita/P. Ruh 1999 | R | longipes x pycnophylla |
| H. 'Blooming Fool' E. Schulz 2002 | R | unknown |
| H. 'Blue Angel' Paul Aden 1986 | R | 'Aden 365' x 'Aden 361' |
| H. 'Blue Arrow' Ken Anderson 1982 | R | unknown |
| H. 'Blue Baron' E. & J. Deckert 2005 | R | unknown |
| H. 'Blue Bayou' Kevin C. Vaughn 1987 | R | 'Frances Williams' hybrid |
| H. 'Blue Beauty' Florence Shaw/AHS 1986 | R | sieboldiana hybrid |
| H. 'Blue Beetle' Alex Malloy 2005 | R | 'Cinnamon Sticks' seedling |
| H. 'Blue Belle' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Belly' Rod Kuenster 2006 | R | |
| H. 'Blue Betty Lou' Clarence Owens 1987 | R | 'True Blue' x 'Gold Regal' |
| H. 'Blue Blazes' Kevin C. Vaughn 1988 | R | 'Blue Boy' x 'Polly Bishop' |
| H. 'Blue Blush' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Boy' D. Stone/AHS 1986 | R | nakaiana x sieboldiana |
| H. 'Blue Cadet' Paul Aden 1974 | R | 'Tokudama' hybrid |
| H. 'Blue Canoe' G. Black/P. Ruh 1999 | R | unknown |
| H. 'Blue Canopy' S. Asch 2000 | R | 'Dorothy Benedict' x (x 'Dorothy Benedict') |
| H. 'Blue Chip' H. Benedict/B. Olson 1997 | R | 'Dorset Blue' x 'Dorset Blue' |
| H. 'Blue Clown' H. & D. Benedict/J. & E. Stratton 1996 | R | 'Dorset Blue' selfed |
| H. 'Blue Danube' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Delight' E. Moore 1993 | R | 'Blue Mammoth' sport |
| H. 'Blue Diamond' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Dimples' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Dome' Eldren W. Minks 1980 | R | 'Tokudama' selfed |
| H. 'Blue Dragon Wings' Phyllis Kedl 2002 | R | sieboldiana hybrid |
| H. 'Blue Eyes' R. Herman 1996 | R | venusta hybrid |
| H. 'Blue Fan Dancer' Paul Aden 1976 | R | 'Tokudama' hybrid |
| H. 'Blue Flame' Naylor Creek Nursery 2004 | R | 'Fragrant Blue' sport |
| H. 'Blue for You' Herb & Dorothy Benedict 1991 | R | 'Tokudama Aureonebulosa' selfed |
| H. 'Blue Freckles' B. Martin 2004 | R | 'Birchwood Parky's Gold' sport |
| H. 'Blue Frost' Elizabeth Nesmith/AHS 1986 | R | sieboldiana hybrid |
| H. 'Blue Gown' William & Eleanor Lachman 1992 | R | unknown |
| H. 'Blue Haired Lady' G. Johnson 2004 | R | yingeri seedling |
| H. 'Blue Hawaii' O. Petryszyn 1999 | R | ('Bengee' x 'Sagae') x 'Tokudama Aureonebulosa' |
| H. 'Blue Heaven' Paul Aden 1976 | R | 'Blue Cadet' x 'Aden 355' |
| H. 'Blue Horizon' Lawrence D. Englerth 1985 | R | 'Tokudama' hybrid |
| H. 'Blue Ice' Ralph H. Benedict 1987 | R | 'Dorset Blue' x 'Blue Moon' |
| H. 'Blue Jay' Ralph H. Benedict 1987 | R | 'Dorset Blue' selfed |
| H. 'Blue June' Ralph H. Benedict 1987 | R | 'Blue Diamond' x 'Tardiana grex hybrid' |
| H. 'Blue Lace' Kevin C. Vaughn 1977 | R | 'Frances Williams' selfed |
| H. 'Blue Lady' Eunice Fisher/Peter Ruh 1998 | R | unknown |
| H. 'Blue Lagoon' Fleeta Brownell Woodroffe 1972 | R | 'Tokudama' hybrid |
| H. 'Blue Lightning' Walters Gardens 2005 | R | 'Blue Umbrellas' sport |
| H. 'Blue Line' Paul Aden 1987 | R | 'Aden 412' x (pulchella sport) |
| H. 'Blue Maui' Bill Silvers 2006 | R | 'Rainforest Sunrise' sport |
| H. 'Blue Max' M. Zilis/Walters Gardens/P. Ruh 1998 | R | 'Helen Doriot' hybrid |
| H. 'Blue Mist' Walters Gardens/M. Zilis/P. & J. Ruh 2003 | R | 'Blue Max' sport |
| H. 'Blue Monday' Robert Solberg 1998 | R | 'Peedee Gray Mulkin' x 'Popo' |
| H. 'Blue Moon' Eric Smith/Paul Aden 1976 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Mouse Ears' E. & J. Deckert 2000 | R | unknown |
| H. 'Blue Music' P. & J. Ruh 2001 | R | (tardiana sport) hybrid |
| H. 'Blue My Mind' H. Hansen/H. Gowen 2003 | R | 'Dorset Clown' sport |
| H. 'Blue Ox' Chet W. Tompkins/P. Ruh 1999 | R | sieboldiana hybrid |
| H. 'Blue Pearl' Hillier Nursery/Krossa/Summers/Ruh 1994 | R | unknown |
| H. 'Blue Piecrust' Alex J. Summers/AHS 1986 | R | unknown |
| H. 'Blue Plisse' Clarence Soules 1990 | R | sieboldiana x 'Tokudama' |
| H. 'Blue Ridge Mountains' E. Elslager 2001 | R | 'Galaxy' x hypoleuca |
| H. 'Blue River' D. Reath/R. Klehm 1998 | R | 'True Blue' sport |
| H. 'Blue Rock' Stone/Fisher/AHS 1986 | R | unknown |
| H. 'Blue Saucers' Lolita K. Powell 1977 | R | sieboldiana 'Elegans' x 'Frances Williams' |
| H. 'Blue Shadows' Ken Anderson 1980 | R | 'Tokudama Aureonebulosa' sport |
| H. 'Blue Skies' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Skirt' Julia Geissler 1970 | R | unknown |
| H. 'Blue Sophistication' M. Zilis 2003 | R | 'Lakeside Sophistication' sport |
| H. 'Blue Spanish Eyes' E. Elslager 2002 | R | 'Sea Prize' hybrid |
| H. 'Blue Splendor' M. Zilis/P. & J. Ruh 2002 | R | 'Blue Moon' sport |
| H. 'Blue Star' J. Brennan 1998 | R | unknown |
| H. 'Blue Suede Shoes' E. Elslager 2001 | R | 'Sea Prize' x 'Maekawa' |
| H. 'Blue Tiers' Paul Aden 1977 | R | (x 'Tokudama') x (x 'Tokudama') |
| H. 'Blue Troll' Robert P. Savory 1973 | R | unknown |
| H. 'Blue Umbrellas' Paul Aden 1978 | R | 'Tokudama' x sieboldiana 'Elegans' |
| H. 'Blue Velvet' Paul Aden 1976 | R | (x 'Tokudama') x (x 'Tokudama') |
| H. 'Blue Vision' Paul Aden 1976 | R | 'Aden 355' x 'Aden 353' |
| H. 'Blue Wedgwood' Eric B. Smith/Summers/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Blue Whirls' Paul Aden 1978 | R | "hybrid" x 'Blue Vision' |
| H. 'Blue without You' T. Kordner 2000 | R | 'Striptease' sport |
| H. 'Bluebeard's Castle' E. Elslager 2003 | R | 'Jim Wilkins' hybrid |
| H. 'Blueberry Pancakes' E. Elslager 2002 | R | 'Sea Prize' x hypoleuca |
| H. 'Blueberry Patch' E. Elslager 2001 | R | 'Galaxy' x 'Maekawa' |
| H. 'Blueberry Tart' Bob Solberg 2005 | R | 'Blue Cadet' x 'Fall Bouquet' |
| H. 'Bluebird' Robert P. Savory 1985 | R | unknown |
| H. 'Bluegrass Country' E. Elslager 2001 | R | 'Sea Prize' x hypoleuca |
| H. 'Blues in the Night' E. Elslager 2004 | R | 'Dorothy Benedict' selfed |
| H. 'Blütenspiel' Heinz Klose 1990/P. & J. Ruh 2003 | R | unknown |
| H. 'Blythe Spirit' Roy Davidson/G. Schenk/P. Ruh 1990 | R | unknown |
| H. 'Bob Koffler' S. & S. Zolock 2005 | R | 'Fascination' seedling |
| H. 'Bob Olson' Herb & Dorothy Benedict 1995 | R | 'Yellow Splash' selfed |
| H. 'Bob Sanders' B. Sanders, E. Elslager 1998 | R | 'Gold Standard' sport |
| H. 'Bobbie Sue' Clarence Owens 1994 | R | 'Marbled White' sport |
| H. 'Bocka' K. Squires/P. Ruh 1999 | R | unknown |
| H. 'Bodacious Blue' R. Goodwin/R. Hiland/R. Whitmore 1999 | R | sieboldiana hybrid |
| H. 'Bojangles' D. Dean 1999 | R | 'Swoosh' x kikutii yakusimensis |
| H. 'Bold and Beautiful' E.Elslager 2002 | R | (x 'Dorothy Benedict') selfed |
| H. 'Bold Edger' Kevin C. Vaughn 1983 | R | 'Beatrice' x 'Frances Williams' |
| H. 'Bold One' Paul Aden 1978 | R | 'Robusta Variegated form' x 'Green Gold' |
| H. 'Bold Ribbons' Paul Aden 1976 | R | unknown |
| H. 'Bold Ruffles' Mrs. Fred Arett 1975 | R | sieboldiana 'Elegans' sport |
| H. 'Bon Voyage' Eldren W. Minks 1980 | R | 'Tokudama' x 'Dear Heart' |
| H. 'Bonanza' E. Nesmith/P. Ruh 1997 | R | unknown |
| H. 'Bonnie' David Stone/Peter Ruh 1987 | R | unknown |
| H. 'Bonnie's Bounty' B. Treichel 2000 | R | unknown |
| H. 'Boogie Blues' Ed Elslager 2005 | R | (x ' Band of Gold') seedling |
| H. 'Boogie Woogie' Calvin Helsley 1998 | R | 'Stiletto' sport |
| H. 'Booka' Henry Weissenberger 1986 | R | 'Blue Cadet' hybrid |
| H. 'Boots and Saddles' Eldren W. Minks 1983 | R | 'Tokudama Aureonebulosa' sport |
| H. 'Border Bandit' William & Eleanor Lachman 1992 | R | 'Lachman 81-8' x 'Halcyon' |
| H. 'Border Favourite' Jan van den Top/Danny Van Eechaute 2004 | R | 'Sultana' sport |
| H. 'Borsch 1' Borsch Nursery 1930/P. Ruh 1999 | R | unknown |
| H. 'Borsch 4' W. Borsch/P. & J. Ruh 2005 | R | unknown |
| H. 'Borwick Beauty' G. & B. McBurnie/BHHS 1988 | R | sieboldiana 'Elegans' sport |
| H. 'Bottom Line' Winterberry Farms/J. Anderson 2003 | R | 'Sum and Substance' sport |
| H. 'Boundary Waters' T. Olson/R. Olson 1999 | R | unknown |
| H. 'Bountiful' Eunice V. Fisher 1971 | R | nakaiana hybrid |
| H. 'Bows and Arrows' E. Elslager 2002 | R | (F1 seedling of 'Dorothy Benedict') x 'Maekawa' |
| H. 'Brandi Nicole' W. Daughenbaugh 2002 | R | 'Undulata Erromena' sport |
| H. 'Brandywine' R. Herold 1993 | R | (montana 'Aureomarginata' x venusta) x longipes f. hypoglauca |
| H. 'Brass Horn' Walden West/J. Hyslop/C. Purtymun 1999 | R | 'Fortunei Stenantha' sport |
| H. 'Brass Ring' Ran Lydell 2000 | R | 'Neat Splash' hybrid |
| H. 'Brave Amherst' William & Eleanor Lachman 1993 | R | 'Christmas Tree' x 'Reversed' |
| H. 'Bravo' Paul Aden 1980 | R | 'Reversed' x 'Fascination' |
| H. 'Brazen Hussy' Robyn Duback 2000 | R | montana x 'Gold Regal' |
| H. 'Bread Crumbs' M. Zilis/B. Solberg 2003 | R | 'Tiny Tears' sport |
| H. 'Break Dance' R. & L. Miller 2001 | R | 'Fan Dance' sport |
| H. 'Breeders Choice' Kevin C. Vaughn 1987 | R | ('Beatrice' x 'Beatrice') x 'Frances Williams' |
| H. 'Brenda's Beauty' R. Keller 1992 | R | 'Gold Standard' sport |
| H. 'Brenner Pass' Fleeta Brownell Woodroffe 1972 | R | 'Tokudama Aureonebulosa' hybrid |
| H. 'Bressingham Blue' Alan Bloom 1984 | R | sieboldiana hybrid |
| H. 'Bridal Veil' Bob Hird 2003 | R | unknown |
| H. 'Bridegroom' Herb & Dorothy Benedict/Hideko Gowen 1990 | R | 'Holly's Honey' selfed |
| H. 'Bridgeville' J. Craig/A. Summers/P. Ruh 1999 | R | unknown |
| H. 'Brigadier' M. Zilis 2003 | R | sieboldiana 'Elegans' x 'Hirao Supreme' |
| H. 'Brigham Blue' Van Bourgondien/P. Ruh 2002 | R | unknown |
| H. 'Bright Eagle' Lydell 1998 | R | unknown |
| H. 'Bright Glow' Paul Aden 1986 | R | 'Aden 380' x 'Aden 382' |
| H. 'Brilliance' E. Elslager 2001 | R | 'Dorothy Benedict' hybrid |
| H. 'Brilliant Sunset' Ed Elslager 2005 | R | 'Merry Sunshine' sport |
| H. 'Brim Cup' Paul Aden 1986 | R | 'Aden 392' x 'Wide Brim' |
| H. 'Broad Ripple' Clyde Crockett 1995 | R | unknown |
| H. 'Broadway Frances' Crockett 1997 | R | 'Frances Williams' sport |
| H. 'Brooke' David Stone/Peter Ruh 1987 | R | unknown |
| H. 'Brookwood Blue' Leola Fraim/Peter Ruh 1991 | R | sieboldiana hybrid |
| H. 'Brother Bunyan' C. Tompkins/J. Ruh/P. Ruh 2002 | R | unknown |
| H. 'Brother Ronald' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Brother Stefan' Olga Petryszyn 1998 | R | 'King Tut' x (x 'Mildred Seaver') |
| H. 'Bruce' David Stone/P. Banyai/P. Ruh 2002 | R | unknown |
| H. 'Bruce's Blue' Briggs Nursery 1991 | R | unknown |
| H. 'Bryce' C. Thompkins/P. & J. Ruh 2002 | R | unknown |
| H. 'Bubba' Tony Avent 1998 | R | 'Sum and Substance' seedling |
| H. 'Buckanon' Steve C. Moldovan 1983 | R | sieboldiana hybrid |
| H. 'Buckeye' T. Goad 2000 | R | 'Sum and Substance' sport |
| H. 'Buckeye Blue' Handy Hatfield/J. & D. Ward 1997 | R | sieboldiana hybrid |
| H. 'Buckshaw Blue' Eric B. Smith/AHS 1986 | R | sieboldiana x 'Tokudama' |
| H. 'Buckwheat Honey' Ralph H. Benedict 1984 | R | 'Ginko Craig' x plantaginea |
| H. 'Buffy' Henry Weissenberger 1986 | R | 'Hadspen Blue' hybrid |
| H. 'Buggy Wheels' Alex Summers, P. & J. Ruh 2005 | R | 'Midwest Gold' sport |
| H. 'Bumblebee' Dennis P. Savory 2000 | R | 'Honey' hybrid |
| H. 'Bunker Hill' P. Bennerup/Alex Malloy 2001 | R | 'Minuteman' sport |
| H. 'Butter and Eggs' J. Kerr 2000 | R | 'Neat Splash' hybrid |
| H. 'Butter Rim' Summers 1969/AHS 1986 | R | sieboldii hybrid |
| H. 'Butter Yellow' Kevin C. Vaughn 1982 | R | |
| H. 'Butternut Hill' Larry Englerth/P. & J. Ruh 2001 | R | hypoleuca x hypoleuca |
| H. 'Buzzard's Bay' A. Malloy 1999 | R | 'Allen C. Haskell' sport |
| H. 'Cadillac' E. Skrocki/T. Avent 1998 | R | unknown |
| H. 'Caesar' A. Malloy 1999 | R | 'Gold Standard' sport |
| H. 'Cajun Sunrise' E. Elslager 2000 | R | 'Sea Prize' x 'Maekawa' |
| H. 'Calamity Jane' Stephen Nyikos 2001 | R | 'William Lachman' x plantaginea |
| H. 'Calypso' William and Eleanor Lachman 1987 | R | "hybrid" x 'White Christmas' |
| H. 'Camelot' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Cameo' H. Hansen/Shady Oaks 2002 | R | 'Baby Bunting' sport |
| H. 'Canadian Foreign Affairs' Ken Knechtel/P. Ruh 2002 | R | unknown |
| H. 'Canadian Shield' Ken Knechtel 1993 | R | 'Halcyon' sport |
| H. 'Canby' C. Tompkins/P. & J. Ruh 2003 | R | unknown |
| H. 'Candle Glow' Fairway Enterprises 1990 | R | 'Fascination' hybrid |
| H. 'Candle Wax' Eldren W. Minks 1974 | R | unknown |
| H. 'Candlelight' D. & J. Ward 2005 | R | 'White Vision' seedling |
| H. 'Candlewood' P. Banyai/S. Asch 2004 | R | unknown |
| H. 'Candy Cane' P. Banyai/Elslager 1995 | R | unknown |
| H. 'Candy Dish' Alex Summers/A. Wrede 2003 | R | 'Urajiro Hachijo' hybrid |
| H. 'Candy Hearts' Eunice Fisher 1971/Peter Ruh 1998 | R | nakaiana hybrid |
| H. 'Candy Striper' R. Woodford 2000 | R | 'Fortunei Hyacinthina' sport |
| H. 'Cantabi' S. Hirao/P. & J. Ruh 2001 | R | unknown |
| H. 'Canterbury Tales' Alex Malloy 2002 | R | 'Chivalry' sport |
| H. 'Capitol Dome' Eldren W. Minks 1980 | R | 'Crested Reef' x 'Crinkle Cup' |
| H. 'Capitol Hill' Tony Avent 2005 | R | 'Potomac Pride' sport |
| H. 'Captain Atom' Alex Malloy 1999 | R | 'Surprised by Joy' sport |
| H. 'Captain Kirk' Kirk Brill 1999 | R | 'Gold Standard' sport |
| H. 'Captain Teach' H. Sugita/P. Ruh/P. & J. Ruh 2001 | R | kikutii var. caput-avis hybrid |
| H. 'Carder Blue' Ellen Carder/Summers/AHS 1986 | R | 'Tokudama' hybrid |
| H. 'Cardwell Yellow' Gus Krossa/Peter Ruh 1981 | R | unknown |
| H. 'Carefree' Eunice V. Fisher 1971 | R | 'Golden Anniversary' hybrid |
| H. 'Carisa Nichole' I. Byrd 2000 | R | 'Christmas Tree' hybrid |
| H. 'Carl' Carl Calderara/Peter Ruh 1991 | R | unknown |
| H. 'Carl A. Francis' C. Francis/S. Chamberlain 2004 | R | "green seedling" sport |
| H. 'Carnival' William and Eleanor Lachman 1986 | R | (x 'Beatrice') x (x 'Frances Williams') |
| H. 'Carol' Frances Williams/AHS 1986 | R | 'Fortunei' sport |
| H. 'Carolina Blue' R. Solberg 2000 | R | 'Halcyon' x 'Riptide' |
| H. 'Carolina Moon' A. Breiwick 1997 | R | 'August Moon' sport |
| H. 'Carolina Sunshine' T. Avent 1999 | R | 'Swoosh' x tibae |
| H. 'Carolingian' Alex Malloy 2003 | R | 'Captain Atom' hybrid |
| H. 'Carousel' William and Eleanor Lachman 1989 | R | "seedling" x 'Reversed' |
| H. 'Carrie Ann' David Stone/Peter Ruh 1988 | R | sieboldii sport |
| H. 'Cartwheels' A. Summers/P. & J. Ruh 2002 | R | 'Golden Nugget' sport |
| H. 'Cascades' William & Eleanor Lachman 1993 | R | 'Banana Sundae' x montana 'Aureomarginata' |
| H. 'Cascading Waters' Don Dean 2005 | R | 'Liberty Bell' x hypoleuca |
| H. 'Cassandra' Wally Wagner 1985 | R | 'Petite Gold' x 'Piedmont Gold' |
| H. 'Cat's Meow' C. Falstad 1998 | R | 'Tokudama Flavocircinalis' sport |
| H. 'Cathedral' Alex Malloy 2002 | R | 'Zager's White Edge' sport |
| H. 'Cathedral Windows' Hans Hansen 2005 | R | 'Stained Glass' sport |
| H. 'Catherine Ann' F. Nyikos 1999 | R | unknown x 'Blue Dimples' |
| H. 'Cavalcade' William & Eleanor Lachman 1990 | R | 'Flamboyant' selfed |
| H. 'Celebration' Paul Aden 1978 | R | 'Aden 378' x 'Aden 322' |
| H. 'Celebrity' William & Eleanor Lachman 1995 | R | 'Beatrice F6' x 'Frances Williams' |
| H. 'Celery Satin' R. Snyder 2001 | R | 'My Secret' sport |
| H. 'Celestial' E. Elslager 2000 | R | 'Dorothy Benedict' x hypoleuca |
| H. 'Celestial Lightning' Ed Elslager 2005 | R | 'Celestial' sport |
| H. 'Celtic Uplands' Don Dean 2005 | R | ((x 'Swoosh') x 'John Wargo') x yingeri |
| H. 'Centennial' Dick & J. Ward 1996 | R | unknown |
| H. 'Center of Attention' J. Kulpa 1999 | R | 'Sea Prize' hybrid |
| H. 'Center Stage' Kevin C. Vaughn 1982 | R | "seedling" x "seedling" |
| H. 'Centerfold' Gayle O. Kamp 1994 | R | unknown |
| H. 'Century One' Steve C. Moldovan 1983 | R | sieboldiana hybrid |
| H. 'Chado' G. Johnson 2004 | R | 'Iron Gate Supreme' x pycnophylla |
| H. 'Chain Lightning' D. & J. Ward 1999 | R | (x 'Pin Stripe Sister') hybrid |
| H. 'Chalice of Gold' Ed Elslager 2004 | R | 'Sea Prize' seedling |
| H. 'Challenger' Eunice V. Fisher 1971 | R | unknown |
| H. 'Chameleon' Caprice Farm Nursery 1986 | R | unknown |
| H. 'Champagne' Robert P. Savory 1994 | R | 'Ogon Koba' hybrid |
| H. 'Champagne and Caviar' C. Helsley 1999 | R | 'Tea and Crumpets' sport |
| H. 'Champion' Marge Soules 1985 | R | sieboldiana x 'Tokudama' |
| H. 'Change of Tradition' Mark Zilis/T&Z Nursery 1985 | R | 'Lancifolia' sport |
| H. 'Changeling' A. Pollock 2005 | R | unknown |
| H. 'Changing Moods' Kevin C. Vaughn 1983 | R | 'Janet' x (x 'William Lachman') |
| H. 'Chante's Dark Emerald' Blue Jean Farms/Lukehart & Miskolcze 2005 | R | 'Gold Standard' sport |
| H. 'Chantilly Lace' William and Eleanor Lachman 1988 | R | 'Calypso' x 'Halcyon' |
| H. 'Chariots of Fire' J. Dishon/A. Malloy 2004 | R | ('Beatrice' x 'Garnet Prince') x pycnophylla |
| H. 'Chartreuse' Gladys Holly 1968/E. Fisher/Peter Ruh 1998 | R | unknown |
| H. 'Chartreuse Piecrust' Clarence Owens 1985 | R | 'Bengee' hybrid |
| H. 'Chartreuse Wedge' Paul Aden 1976 | R | 'Green Wedge' selfed |
| H. 'Chartreuse Wiggles' Paul Aden 1976 | R | 'Wogon' hybrid |
| H. 'Cheatin Heart' W. Zumbar 1995 | R | "Subcrocea cross F2" x 'Birchwood Gem' |
| H. 'Chelsea Babe' BHHS 1988 | R | 'Fortunei Albopicta' sport |
| H. 'Chelsea Ore' Chelsea Physic Garden/Compton 1989 | R | plantaginea sport or hybrid |
| H. 'Cherish' H. Hansen/Shady Oaks 2002 | R | 'Baby Bunting' sport |
| H. 'Cherries Jubilee' Alex Malloy 2001 | R | 'Cherry Berry' sport |
| H. 'Cherry Berry' William and Eleanor Lachman 1991 | R | 'Lachman 82-18-1' x 'Lachman 81-9-2' |
| H. 'Cherry Bomb' G. Johnson 2004 | R | 'Little Wonder' seedling |
| H. 'Cherub' William and Eleanor Lachman 1989 | R | 'Crepe Suzette' x 'Blue Moon' |
| H. 'Chesapeake Bay' Olga Petryszyn 2004 | R | ('Maui Rains' x 'Blue Arrow') x 'Blue Betty Lou' |
| H. 'Chesieres Green Christmas' L. Hirsbrunner 2002 | R | 'Christmas Tree' sport |
| H. 'Chesieres Jasmin's Hope' L. Hirsbrunner 2002 | R | 'Blue Angel' sport |
| H. 'Chesieres Mountain Lights' L. Hirsbrunner 2002 | R | 'Richland Gold' sport |
| H. 'Chesieres September Frost' L. Hirsbrunner 2002 | R | 'Frosted Jade' sport |
| H. 'Chesterland Gold' M. Zilis/P. Ruh 1997 | R | 'Paul's Glory' sport |
| H. 'Childhood Sweetheart' Hans Hansen 2005 | R | ('Neat Splash' x 'Tardiflora') x 'Shining Tot' |
| H. 'China Doll' Robert P. Savory 1988 | R | 'August Moon' hybrid |
| H. 'Chinese Sunrise' R. Schaeffer/A. Summers/P. Ruh 1992 | R | cathayana sport |
| H. 'Chippewa' Arett/AHS 1986 | R | sieboldiana sport |
| H. 'Chiquita' Mervin C. Eisel 1979 | R | unknown |
| H. 'Chivalry' Alex Malloy 2001 | R | 'Flamboyant' x 'Metallica' |
| H. 'Chodai Ginba' Kajigawa/Gotemba Nursery/P. & J. Ruh 2003 | R | unknown |
| H. 'Choo Choo Train' T. Sears/T. Avent 1999 | R | unknown |
| H. 'Christmas Candy' D. van Erven/D. Van Eechaute/G. van Eyk-Bos 2002 | R | 'Night before Christmas' sport |
| H. 'Christmas Charm' M. Zilis 2003 | R | 'Night before Christmas' sport |
| H. 'Christmas Cookies' M. Zilis/R. Solberg 2003 | R | 'Night before Christmas' sport |
| H. 'Christmas Cup' Stuart Asch 2000 | R | 'Christmas Tree' hybrid |
| H. 'Christmas Pageant' Mike Pinterics 2000 | R | 'Christmas Tree' sport |
| H. 'Christmas Tree' Kevin C. Vaughn/Mildred Seaver 1982 | R | 'Frances Williams' x 'Beatrice' |
| H. 'Christmas Tree Gala' Loleta Powell 2000 | R | 'Christmas Tree' sport |
| H. 'Chutzpah' Alex Malloy 2002 | R | 'Anglo Saxon' hybrid |
| H. 'Cinderella' M. Zilis/J. & K. Schwarz 2004 | R | 'Dorothy Benedict' selfed |
| H. 'Circle of Light' Kevin Walek 1996 | R | 'Galaxy' x 'Little White Lines' |
| H. 'Circus Clown' Eldren W. Minks 1983 | R | 'Ruffles' x 'Green Piecrust' |
| H. 'Citation' Paul Aden 1980 | R | 'Vicky Aden' hybrid |
| H. 'City Lights' Paul Aden 1978 | R | 'White Vision' x 'Golden Prayers' |
| H. 'City Slicker' Jim Dishon 1996 | R | 'Yellow Splash' x yingeri |
| H. 'Clambake' G. Goodwin 2000 | R | hypoleuca hybrid |
| H. 'Clarence' Lucille Simpers/Marjorie Soules 1996 | R | sieboldiana hybrid |
| H. 'Clarence Owens' J. Kulpa 2001 | R | 'Lucky Fifty' hybrid |
| H. 'Classic Delight' Eunice V. Fisher 1973 | R | 'Green Piecrust' hybrid |
| H. 'Clayton Burkey' C. Burkley/S. & S. Zolock 2005 | R | unknown |
| H. 'Clearfork Green' Van Wade 1999 | R | unknown |
| H. 'Clifford's Broken Heart' J. Clifford 2000 | R | 'Loyalist' sport |
| H. 'Clifford's Comet' John Clifford 2000 | R | 'Loyalist' sport |
| H. 'Clifford's Forest Fire' John Clifford 2000 | R | 'Sagae' sport |
| H. 'Clifford's Polar Moon' J. Clifford 2000 | R | 'September Sun' sport |
| H. 'Clifford's Stingray' John Clifford 2000 | R | 'Loyalist' sport |
| H. 'Climax' Gil Jones 2000 | R | 'High Noon' sport |
| H. 'Cloud Sweeper' S. & S. Zolock 2003 | R | 'Tall Boy' hybrid |
| H. 'Cloudburst' Doug Beilstein/Mark Zilis 2006 | R | 'Glory' seedling |
| H. 'Clovelly' Kent Terpening 2005 | R | 'Split Decision' selfed |
| H. 'Clown's Collar' D. Dean 2004 | R | 'Dorset Clown' sport |
| H. 'Cody' R. Solberg 1996 | R | 'Shining Tot' x venusta |
| H. 'Cogleywood' J. Shugart/M. Crowl/L. Hansen 1999 | R | unknown |
| H. 'Colesburg Blue' Bob Hackbarth 2004 | R | 'Tokudama' sport |
| H. 'Colonel Murphy' Steve & Sarah Zolock 2001 | R | unknown |
| H. 'Color a la Mode' E. Elslager 2000 | R | 'Color Fantasy' x hypoleuca |
| H. 'Color Accord' Paul Aden 1982 | R | 'Fascination' hybrid |
| H. 'Color Fantasy' Paul Aden 1980 | R | 'Gala' hybrid |
| H. 'Color Glory ' Paul Aden 1980 | R | 'Fascination' x 'Intrigue' |
| H. 'Color Parade' M. Zilis 2003 | R | 'Fragrant Bouquet' sport |
| H. 'Colorado River' Doug Beilstein/Alex Malloy 2005 | R | 'Neat Splash' x 'Riptide' |
| H. 'Colossal' Robert P. Savory 1977 | R | unknown |
| H. 'Comeuppance' Paul Aden 1982 | R | 'Vicki Aden' x 'Fascination' |
| H. 'Compass Point' C. Seaver 2004 | R | unknown |
| H. 'Con Te Partiro' G. Johnson 2004 | R | ('Little Wonder' selfed) x 'Blue Moon' |
| H. 'Concord' R. Lydell 2000 | R | 'Nangoku' hybrid |
| H. 'Concordia Petite' Ursula Syre-Herz 1996 | R | venusta x 'Golden Tiara' |
| H. 'Condor' H. Sugita/R. Lydell/P. & J. Ruh 2002 | R | longipes x pycnophylla |
| H. 'Confused' R. Beal 1999 | R | 'Fortunei Hyacinthina' sport |
| H. 'Confused Angel' Danny Van Eechaute 2005 | R | 'Blue Angel' sport |
| H. 'Connecticut River' Doug Beilstein/Alex Malloy 2005 | R | 'Harvest Dandy' x 'Blue Blush' |
| H. 'Connie' Ralph H. Benedict 1987 | R | ('Sunlight' sport) x ('Frances Williams' sport) |
| H. 'Connie Sun' R.Snyder 2001 | R | 'Sunshine Glory' sport |
| H. 'Cookie Crumbs' M. Zilis/R. Solberg 2002 | R | 'Tiny Tears' sport |
| H. 'Cool Cat' Ed Elslager2005 | R | 'Foxy Cat' sport |
| H. 'Cool Change' Bob Kuk 1995 | R | sieboldiana hybrid |
| H. 'Coquette' Ralph H. Benedict 1987 | R | 'Neat Splash' selfed |
| H. 'Cordelia' Bob Kuk 1991 | R | 'Neat Splash' hybrid |
| H. 'Corduroy' Steve C. Moldovan 1983 | R | 'Green Acres' hybrid |
| H. 'Corkscrew' R. Solberg 2003 | R | 'Tortifrons' x 'One Man's Treasure' |
| H. 'Corona' G. Braun-Nauerz/P. Warmerdam 1996 | R | 'Sum and Substance' sport |
| H. 'Coronation' Randy Goodwin 2006 | R | |
| H. 'Cory's Beauty' R. Cory 2004 | R | 'Blue Mammoth' sport |
| H. 'Cosmic Brother' Rod Kuenster 2006 | R | |
| H. 'Cosmic Hippie' Rod Kuenster 2006 | R | |
| H. 'Cosmic Sister' Rod Kuenster 2006 | R | |
| H. 'Cotillion' William W. Zumbar 1995 | R | (x 'Breeders Choice') x (nakaiana x 'Kii Hime') |
| H. 'Count Dracula' Clyde Crockett 1997 | R | unknown |
| H. 'Counter Point' Paul Aden 1982 | R | 'Francee' sport or hybrid |
| H. 'Country Road' D. Dean 2000 | R | 'Rocky Road' hybrid |
| H. 'County Park' Grounds/Graham Hutchins 1983 | R | unknown |
| H. 'Courtesy' M. Zilis/W. Zumbar 2003 | R | 'Sum and Substance' x (x venusta) |
| H. 'Cracker Crumbs' R. Solberg 2002 | R | 'Shiny Penny' sport |
| H. 'Craig Harlequin Bells' J. Craig/A. Summers/P. Ruh 1998 | R | unknown |
| H. 'Craig's Temptation' Japan/J. Craig & G. Schenk/P. Ruh 2002 | R | venusta hybrid |
| H. 'Crater Lake' R. Snyder 1996 | R | 'Elegans' hybrid |
| H. 'Cream Cheese' William and Eleanor Lachman 1991 | R | 'Crepe Suzette' selfed |
| H. 'Crème Brûlée' G. Johnson 2004 | R | 'Sparkling Burgundy' sport |
| H. 'Crème Solaire' E. & J. Deckert 2004 | R | unknown |
| H. 'Crepe Suzette' William and Eleanor Lachman 1986 | R | 'Flamboyant' hybrid |
| H. 'Crescendo' G. Kamp 2001 | R | 'Sagae' hybrid |
| H. 'Crescent Moon' Walters Gardens 1988 | R | 'Lunar Eclipse' sport |
| H. 'Crested Reef' Eldren W. Minks 1975 | R | 'August Moon' x 'Ruffles' |
| H. 'Crested Surf' Ralph & Dorothy Benedict 1990 | R | 'Neat Splash' selfed |
| H. 'Crinkle Cup' Eunice V. Fisher 1971 | R | 'Golden Anniversary' seedling |
| H. 'Crinoline Petticoats' Clarence Soules 1990 | R | sieboldiana x 'Tokudama' |
| H. 'Crispula' F. Maekawa/W. G. Schmid/AHS 2001 | R | montana? hybrid? |
| H. 'Crocodile Rock' S. Wilkins/J. Wilkins 2000 | R | unknown |
| H. 'Crocodile Smile' J. Kulpa 2001 | R | unknown |
| H. 'Cross Stitch' W. Zumbar/P. Ruh 1992 | R | "T4401" x "T4402" |
| H. 'Crossroads Bling Bling' T. England 2003 | R | 'Crossroads Hurricane' sport |
| H. 'Crossroads Budgie' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Hurricane' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Oscar' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Parrot' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Rowdy' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Steve' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Crossroads Whirlpool' T. England 2003 | R | 'William Lachman' hybrid |
| H. 'Croutons' Mark Zilis/Bob Solberg 2003 | R | 'Tiny Tears' sport |
| H. 'Crow's Nest' Charles R. Seaver 1995 | R | 'Don Stevens' x 'Sea Angel' |
| H. 'Crown Jewel' Walters Gardens 1984 | R | 'Gold Drop' sport |
| H. 'Crown Prince' Henry Ross/Peter Ruh 1987 | R | unknown |
| H. 'Crown Royalty' Fairway Enterprises 1990 | R | 'Carol' x 'Fortunei Aureomarginata' |
| H. 'Crowned Imperial' Walters Gardens 1988 | R | 'Fortunei Hyacinthina' sport |
| H. 'Crumples' Diane Grenfell 1996 | R | sieboldiana 'Elegans' hybrid |
| H. 'Crusader' William and Eleanor Lachman 1989 | R | ('Resonance' x 'P14-3') x 'Halcyon' |
| H. 'Cry Baby' L. Jones 1999 | R | 'Anne Arett' hybrid |
| H. 'Crystal Charm' E. Lachman/T. Schmid 2001 | R | unknown |
| H. 'Crystal Chimes' J. Springer 2000 | R | yingeri hybrid |
| H. 'Crystal Fountain' B. Banyai 1999 | R | ventricosa sport |
| H. 'Crystal Glaze' L. Simpers/P. Banyai/B. Banyai 2000 | R | montana hybrid |
| H. 'Crystal Moon' A. Tower/Tower Perennial Gardens 2002 | R | 'August Moon' sport |
| H. 'Crystal Tiara' Walters Gardens 1998 | R | 'Grand Tiara' sport |
| H. 'Cubby Bear' E. Elslager 2000 | R | 'Neat Splash' x 'Halcyon' |
| H. 'Cupid's Arrow' Walters Gardens 1988 | R | 'Candy Hearts' sport |
| H. 'Cupid's Dart' Walters Gardens 1997 | R | 'Heartsong' sport |
| H. 'Curlew' Eric B. Smith/BHHS 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Curlicue' E. Elslager 2001 | R | 'William Lachman' x 'Maekawa' |
| H. 'Curls' Fairway Enterprises/Minks 1990 | R | 'Tall Twister' x 'Circus Clown' |
| H. 'Curly' Eleanor and William Lachman 1991 | R | 'Resonance' x 'White Christmas' |
| H. 'Curly Locks' William and Eleanor Lachman 1989 | R | 'Lachman 82-18' hybrid |
| H. 'Curly Top' Ralph H. Benedict 1985 | R | 'Ginko Craig' x plantaginea |
| H. 'Curtain Call' J. Wilkins 1998 | R | 'Wolverine' sport |
| H. 'Curves' Ed Elslager 2005 | R | (x 'Sea Prize') seedling |
| H. 'Cutie Pie' Ed Elslager 2005 | R | (x 'William Lachman') seedling |
| H. 'Cutting Edge' H. Gowen, R. Benedict 1999 | R | 'Salute' x pycnophylla |
| H. 'Cyberstar' E. Elslager 2002 | R | 'Sea Prize' hybrid |
| H. 'Cyclone' J. Schwarz 2002 | R | 'Whirlwind' sport |
| H. 'Cyclops' Rachel Soucek/John Soucek 2005 | R | unknown |
| H. 'Cynthia' Chet W. Tompkins 1984 | R | montana hybrid |
| H. 'Dab a Green' Mark Zilis 2006 | R | 'Abba Dabba Do' sport |
| H. 'Daddy Boomer' Ed Elslager 2005 | R | 'Baby Boomer' sport |
| H. 'Daily Joy' Eunice V. Fisher 1973 | R | 'Crispula' hybrid |
| H. 'Daisy Doolittle' R. Goodwin 2003 | R | "small streaked plant" sport |
| H. 'Dale's Blue Gray' Lillian Maroushek/Ron Snyder 1998 | R | unknown |
| H. 'Dalton's Pick' Kent Terpening 2005 | R | unknown |
| H. 'Dance with Me' Hans Hansen/Shady Oaks 2002 | R | 'Summer Music' sport |
| H. 'Dancing Cobra' R. Vincun 2003 | R | unknown |
| H. 'Dancing Flame' L. Jones 2006 | R | 'Saint Elmo's Fire' sport |
| H. 'Dancing in the Rain' Walters Gardens 2004 | R | 'Blue Umbrellas' sport |
| H. 'Dancing Queen' Kent Terpening/A. Scheer 2005 | R | 'Split Personality' seedling |
| H. 'Dancing with the Stars' E. Elslager 2005 | R | 'Super Star' seedling |
| H. 'Dandy Randy' Stuart Asch 2004 | R | 'Dorothy Benedict' selfed |
| H. 'Dandy's Pride' E. Elslager 1999 | R | 'Dapper Jim' sport |
| H. 'Daniel' Henry Weissenberger 1986 | R | 'Blue Cadet' hybrid |
| H. 'Dapper Jim' Ed Elslager 1999 | R | 'Little Jim' hybrid |
| H. 'Dapra's Delight' W. Zumbar/S. Dapra 2000 | R | unknown |
| H. 'Dark Ages' Alex Malloy 2004 | R | 'Dark Nebula' seedling |
| H. 'Dark Forest' R. Goodwin 2005 | R | unknown |
| H. 'Dark Nebula' A. Malloy 1999 | R | unknown |
| H. 'Dark Shadows' H. Hansen 2004 | R | unknown |
| H. 'Dark Star' Roy Herold 1999 | R | 'Swoosh' x 'Hadspen Heron' |
| H. 'Dark Tower' Dick & J. Ward 1996 | R | 'Sagae' hybrid |
| H. 'Dark Victory' Robert P. Savory 1977 | R | 'Lancifolia Minor' hybrid |
| H. 'Dark Waters' F. Rogers 2005 | R | unknown |
| H. 'Dartmoor Forest' A. Eason/A. & R. Bowden/P. & J. Ruh 2005 | R | rectifolia hybrid |
| H. 'Dauntless' P. & J. Ruh 2002 | R | sieboldiana hybrid |
| H. 'David A. Haskell' Allen C. Haskell/A. Malloy 1999 | R | 'Sum and Substance' sport |
| H. 'David F. Mahoney' S. Chamberlain 2001 | R | unknown |
| H. 'David Reath' D. Reath/Klehm 1998 | R | 'Gold Regal' sport |
| H. 'Dawes' D. & J. Ward 2005 | R | 'Pin Stripe Sister' seedling |
| H. 'Dawn' BHHS/S. Bond 2000 | R | unknown |
| H. 'Dawn Treader' Alex Malloy 2000 | R | 'Aspen Gold' sport |
| H. 'Dawn's Early Light' Olga Petryszyn 1998 | R | 'Sea Fire' hybrid |
| H. 'Dax' Dirk Dupré 2006 | R | 'Devon Green' sport |
| H. 'Day Dream' Gary Trucks 1998 | R | 'Sea Dream' sport |
| H. 'Day's End' Mark Zilis 1999 | R | 'Daybreak' sport |
| H. 'Daybreak' Paul Aden 1986 | R | "Japanese seedling" sport |
| H. 'Dazzling' E. Elslager 2001 | R | 'Dorothy Benedict' x 'Maekawa' |
| H. 'Deane's Dream' R. Solberg 2000 | R | 'Blue Arrow' x 'Sea Fire' |
| H. 'Dear Heart' Eldren W. Minks 1975 | R | nakaiana x 'Blue Boy' |
| H. 'Debutante' Paul Aden 1978 | R | 'Wahoo' x 'Flamboyant' |
| H. 'Deceiver' Stuart Asch 2003 | R | 'William Lachman' x 'Permanent Wave' |
| H. 'Decorata' Japan/Liberty Hyde Bailey 1930/AHS 2002 | R | unknown |
| H. 'Dee's Golden Jewel' Kevin Walek 1996 | R | 'Royal Standard' x 'Galaxy' |
| H. 'Deep Blue Sea' Charly Seaver 1994 | R | 'Blue Moon' hybrid |
| H. 'Deep Pockets' Bob Hird 2005 | R | unknown |
| H. 'Déjà Blu' Walters Gardens/K. Hurd 2005 | R | 'Blue Boy' sport |
| H. 'Delaware River' Alex Malloy 2005 | R | unknown |
| H. 'Delia' Richard & Mary Ford 1995 | R | 'Golden Prayers' sport |
| H. 'Deliverance' Tony Avent 2005 | R | (('Swoosh' x longissima) x 'Red Neck Heaven') x 'Elvis Lives' |
| H. 'Delta Desire' M. Zilis/M. Vanous 2003 | R | 'Delta Dawn' sport |
| H. 'Delta Pride' M. Zilis/T. Toman 2003 | R | 'Delta Dawn' sport |
| H. 'Deluxe Edition' Walden West/J. Hyslop 1999 | R | unknown |
| H. 'Demetriou's Gold' B. & J. Demetriou 2001 | R | unknown |
| H. 'Denali' R. Goodwin 2005 | R | unknown |
| H. 'Density' Fairway Enterprises/Minks 1990 | R | densa sport |
| H. 'Designer Genes' Arthur Wrede 2005 | R | 'Miss Susie' hybrid |
| H. 'Destiny' C. Helsley 2004 | R | 'Abiqua Recluse' sport |
| H. 'Devon Blue' Ann & Roger Bowden 1988 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Devon Discovery' J. Goaters/A. & R. Bowden/P. & J. Ruh 2005 | R | unknown |
| H. 'Devon Gold' A. & R. Bowden/P. & J. Ruh 2005 | R | unknown |
| H. 'Devon Green' A. & R. Bowden/P. & J. Ruh 2005 | R | 'Halcyon' sport |
| H. 'Devon Mist' A. & R. Bowden/P. & J. Ruh 2005 | R | 'Buckshaw Blue' hybrid |
| H. 'Devon Tor' A. & R. Bowden/P. & J. Ruh 2005 | R | montana seedling |
| H. 'Dew Drop' Walters Gardens 1988 | R | 'Gold Drop' sport |
| H. 'Dewed Steel' Danny Van Eechaute 2006 | R | unknown |
| H. 'Dewline' Chet Tompkins/P. & J. Ruh 2002 | R | unknown |
| H. 'Diadem' R. Snyder 2002 | R | 'King Tut' sport |
| H. 'Diamond Jubilee' R. Savory/D. Savory 2006 | R | 'Vilmoriniana' seedling |
| H. 'Diamond Tiara' T&Z Nursery/Mark Zilis 1985 | R | 'Golden Tiara' sport |
| H. 'Diana Remembered' John Kulpa 1997 | R | 'Seventh Heaven' sport |
| H. 'Dianne' Clarence Owens 1985 | R | 'August Moon' sport |
| H. 'Dick Ward' Handy Hatfield 1991 | R | 'Zounds' sport |
| H. 'Dick's Delight' R. Rossing 1998 | R | nakaiana hybrid |
| H. 'Diddily-squat' G. Johnson 2004 | R | 'Quilting Bee' seedling |
| H. 'Dim Sum' Belle Gardens 1994 | R | longipes var. latifolia hybrid |
| H. 'Dimension X' Alex Malloy 2003 | R | 'Pin Stripe Sister' hybrid |
| H. 'Dimity' Tom Micheletti 1998 | R | 'Baby Kim' hybrid |
| H. 'Dimpled Chad' E. Elslager 2001 | R | 'Sea Prize' hybrid |
| H. 'Dionysos' Alex Malloy 2000 | R | unknown |
| H. 'Dippity Dew' Jim Schwarz 1999 | R | 'Peedee Dew Catcher' sport |
| H. 'Dipsy Doodle' E. Elslager 2000 | R | 'William Lachman' hybrid |
| H. 'Distinction' Eunice Fisher/Peter Ruh 1998 | R | 'Sea Frolic' x 'Donahue Piecrust' |
| H. 'Diva' R. O'Harra/Russ O'Harra Hosta Society 1999 | R | 'Elatior' seedling |
| H. 'Dixie Chick' Tony Avent 1999 | R | 'Masquerade' x 'Invincible' |
| H. 'Dixie Joy' Paul Aden 1983 | R | 'Gala' x 'Halo' |
| H. 'Dixie Pixie' B. Martin 2004 | R | 'Fair Maiden' sport |
| H. 'Dixie Queen' Robert P. Savory 1982 | R | nakaiana hybrid |
| H. 'Do Little' E. Schulz 2005 | R | 'Abba Dabba Do' sport |
| H. 'Doctor Fu Manchu' H. Sugita/Peter Ruh 1998 | R | longipes x pycnophylla |
| H. 'Doctor Reath' D. Reath/P. Ruh 1997 | R | sieboldiana sport |
| H. 'Domaine de Courson' Ignace Van Doorslaer/Diane Grenfell 1996 | R | 'Sum and Substance' sport |
| H. 'Don Quixote' M. Seaver 2004 | R | 'Don Stevens' sport |
| H. 'Don Stevens' Mildred Seaver 2004 | R | 'Neat Splash' hybrid |
| H. 'Donahue Piecrust' Thomas Donahue/P. Ruh 1999 | R | montana hybrid |
| H. 'Dorothy' Williams/AHS 1986 | R | 'Decorata' x 'Fortunei' |
| H. 'Dorothy Benedict' Ralph H. Benedict 1983 | R | 'Frances Williams' selfed |
| H. 'Dorset Blue' Eric Smith/Paul Aden 1977 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Dorset Charm ' Eric Smith/Peter Ruh 1990 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Dorset Flair' Eric Smith/Peter Ruh 1990 | R | tardiflora x sieboldiana 'Elegans' |
| H. 'Dorset Glenn' R. Kuenster 2005 | R | 'Dorset Clown' x (x 'Dorset Clown') |
| H. 'Double Eagle' D. Dean 2000 | R | 'Sagae' hybrid |
| H. 'Double Edge' Paul Aden 1982 | R | 'Flamboyant' x 'Fascination' |
| H. 'Doublemint' E. Elslager 2001 | R | 'Herb Benedict' x hypoleuca |
| H. 'Doubloons' M. Zilis/W. Zumbar 2003 | R | 'Alvatine Taylor' sport |
| H. 'Dragon Fire' Wyatt Lefever/Bob Solberg 2005 | R | 'Riptide' seedling |
| H. 'Dragon Wings' W. Lefever 1996 | R | montana x 'Fortunei' |
| H. 'Dragon's Blood' H. Sugita/P. Ruh 1998 | R | longipes x pycnophylla |
| H. 'Drawn Butter' Belle Gardens 1994 | R | 'Whoopee' hybrid |
| H. 'Dream Angel' M. Laico 2003 | R | unknown |
| H. 'Dream Weaver' Bonnie Ruetenik/Kevin Walek 1996 | R | 'Great Expectations' sport |
| H. 'Dreamland' Alex Malloy 2003 | R | 'Pink Panther' hybrid |
| H. 'Dress Blues' William Zumbar 1995 | R | "Breeders Choice F1" x 'Halcyon' |
| H. 'Dressed in Green' Danny Van Eechaute 2004 | R | unknown |
| H. 'Drip Drop' Walters Gardens 1988 | R | 'Gold Drop' sport |
| H. 'Drummer Boy' Steve C. Moldovan 1983 | R | nakaiana x 'Ruffled Queen' |
| H. 'Ducet' Alex Malloy 2004 | R | 'Electrum Stater' seedling |
| H. 'Duchess' Robert P. Savory 1982 | R | (x nakaiana) sport |
| H. 'Duke' Robert P. Savory 1988 | R | unknown |
| H. 'Dumb Blonde' R. Simmering 2001 | R | 'Blond Elf' sport |
| H. 'DuPage Delight' Mark Zilis 1990 | R | 'Frances Williams' sport |
| H. 'Dust Devil' Mark Zilis 1999 | R | 'Whirlwind' sport |
| H. 'Dustin' David Stone/Peter Ruh 1988 | R | unknown |
| H. 'Dustin More' R. Snyder 2003 | R | 'Dustin' sport |
| H. 'Eagle Creek Woods' Randy Goodwin 2006 | R | |
| H. 'Eagle Spirit' Randy Goodwin 2003 | R | (x 'Bravo') seedling |
| H. 'Eagle's Nest' R. Lydell 2000 | R | 'Sum and Substance' sport |
| H. 'Early to Rise' Randy Goodwin 2006 | R | |
| H. 'Earth Angel' Hans Hansen 2002 | R | 'Blue Angel' sport |
| H. 'Earth, Wind and Fire' E. Elslager 2003 | R | "'Dorothy Benedict' F1" hybrid |
| H. 'Ebb Tide' Ed Elslager 1997 | R | montana 'Aureomarginata' sport |
| H. 'Ebony Knight' B. Treichel 2000 | R | unknown |
| H. 'Ebony Spires' D. Dean 1999 | R | 'Urajiro Hachijo' x 'John Wargo' |
| H. 'Ebony Towers' Don Dean 2005 | R | ('Liberty Bell' x ('Urajiro Hachijo' x pycnophylla)) x ('Urajiro Hachijo' x pycn |
| H. 'Edge of Might' E. Elslager 2002 | R | (x 'Dorothy Benedict') selfed |
| H. 'Edge of Night' |