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New hostas come about as the result of asexual changes in the genetics of a plant called sports or through sexual reproduction (seeds) involving human manipulation (hyrbridizing) or through random action of bees in the garden. Either way, the resulting plants share the DNA and physical traits of the parent plants which can be of interest to Hostaphiles. These plants are the ancestors or "Background" hostas for each cultivar.

Listed on these 2021 index pages are the over 13,700 hosta names in the Hosta Helper Database. For each of the names, we have tried to gather information on 10 categories related to a particular cultivar or species. These include its use as a pod parent, pollen parent or sport parent. The genetic background of the plant is included where known. Plants that are considered the "Same As" or are similar looking or which have similar sounding names have been added. Siblings which came from the same hybridizing cross or from a single batch of tissue culture sports are noted.

Also included may be certain "type" plants. For instance, many hostas are said to be Tardiana-like or a H. 'Sieboldiana' -type although their precise genetic background is not known.

Note: This list includes hostas in our database and may not include ALL hostas that might fit this category.
- Indicates cultivars or species with 10 or more data entries. They include extra pages which divide the large data sets into smaller, more easily analyzed listings.

  1. '1 800 Full Moon'
  2. '1 in a Thousand'
  3. '1 2 Adore'
  4. '101st Airborne'
  5. 'O Fuji Fukurin'
  6. 'O Heartland Gold'
  7. 'O Kanzashi'
  8. 'Oak Tree'
  9. 'Oakview'
  10. 'Oasis' (Malloy)
  11. 'Oasis' (Ward)
  12. 'Oba Gibōshi'
  13. 'Oba Kanzashi'
  14. 'Oberland Advanced Technology'
  15. 'Oberland Blue Dimension'
  16. 'Oberland Colourful Noise'
  17. 'Oberland Darkness'
  18. 'Oberland Green Swallow'
  19. 'Oberland Spring Air'
  20. 'Oberland Thin Line'
  21. 'Obi-Wan Kenobi'
  22. 'Obscene Gesture'
  23. 'Obscura'
  24. 'Obscura Albo-marginata'
  25. 'Obscura Aureomarginata'
  26. 'Obsession'
  27. 'Occupy Wall Street'
  28. 'Ocean Dusk'
  29. 'Ocean Isle'
  30. 'Ocean Isle Abracadabra'
  31. 'Ocean Isle Blue'
  32. 'Ocean Isle Gold'
  33. 'Ocean Isle Gold Dust'
  34. 'Ocean Isle Tide Line'
  35. 'Ocean Isle Tornado'
  36. 'Ocean Isle Twist'
  37. 'Ocean Isle Tye Dye'
  38. 'Ocean Tide'
  39. 'Ocean's Away'
  40. 'Ocean's Blue'
  41. 'Ocean's Fury'
  42. 'October Fest'
  43. 'October Sky'
  44. 'October Skies'
  45. 'October Statement'
  46. 'Odd Ball'
  47. 'Odd Goddess'
  48. 'Oddity Prize'
  49. 'Ode to Joy'
  50. 'Oder'
  51. 'Odina'
  52. 'Odo'
  53. 'Odyssey'
  54. 'Og, Son of Fire'
  55. 'Oga'
  56. 'Oga Gibōshi'
  57. 'Oglala'
  58. 'Ogata Bunchoko'
  59. 'Ogon'
  60. 'Ōgon', H. capitata
  61. 'Ōgon', H. cathayana
  62. 'Ōgon', H. hybpoleuca
  63. 'Ōgon', H. kikutii polyneuron
  64. 'Ōgon', H. longipes
  65. 'Ōgon', H. montana
  66. 'Ōgon', H. nakaiana
  67. 'Ōgon', H. pycnophylla
  68. 'Ōgon', H. rectifolia
  69. 'Ōgon', H. tsushimiensis
  70. 'Ōgon', H. venusta
  71. 'Ogon Akikaze'
  72. 'Ogan Albomarginata'
  73. 'Ōgon Amagi'
  74. 'Ōgon Amagi Iwa'
  75. 'Ōgon Baran'
  76. 'Ogon Chirifu Hime'
  77. 'Ogon Dai Tokudama'
  78. 'Ogon Fukurin'
  79. 'Ogon Fukurin Oba'
  80. 'Ogon Hime' (Kenji Watanabe)
  81. 'Ogon Hime' (Zilis)
  82. 'Ogon Hime', H. sieboldii
  83. 'Ōgon Hime Tokudama'
  84. 'Ōgon Iwa'
  85. 'Ogon Kabitan'
  86. 'Ōgon Kanzashi'
  87. 'Ogon Ko Urajiro'
  88. 'Ōgon Koba'
  89. 'Ogon Kuro'
  90. 'Ōgon Murasaki'
  91. 'Ogon Nishiki'
  92. 'Ōgon Oba'
  93. 'Ōgon Otome'
  94. 'Ogon Otome Gibosa'
  95. 'Ogon Otome Hideko'
  96. 'Ōgon Sagae'
  97. 'Ōgon Setouchi'
  98. 'Ōgon Sudare'
  99. 'Ōgon Tachi'
  100. 'Ogon Tokudama'
  101. 'Ōgon Tsushima'
  102. 'Ogon Urajiro'
  103. 'Ogon Waisei'
  104. 'Ogon Wogon'
  105. 'Oh Audrey'
  106. 'Oh Baby Mine'
  107. 'Oh by Gosh'
  108. 'Oh Charlie'
  109. 'Oh Cindy'
  110. 'Oh Dannyboy'
  111. 'Oh Henry'
  112. 'Oh My Darling'
  113. 'Oh My Heart'
  114. 'Oh to Be Fourteen'
  115. 'Oh! Susanna'
  116. 'Oh! Them Golden Slippers'
  117. 'Ohatsuki'
  118. 'Ohh! Alpha'
  119. 'Ohh! Amber'
  120. 'Ohh! Blue Beacon'
  121. 'Ohh! Blue Bounty'
  122. 'Ohh! Blue Bruiser'
  123. 'Ohh! Blue Finale'
  1. 'Ohh! Blue Granite'
  2. 'Ohh! Blue Otto'
  3. 'Ohh! Charlotte'
  4. 'Ohh! Clare'
  5. 'Ohh! Elvira'
  6. 'Ohh! His Blue Eyes'
  7. 'Ohh! Jewel'
  8. 'Ohh! Laurel'
  9. 'Ohh! Lovilia'
  10. 'Ohh! Ludell'
  11. 'Ohh! Powder Blue River'
  12. 'Ohh! Richland Reward'
  13. 'Ohh! Tut's Treasure'
  14. 'Ohh! Ultra Aqua'
  15. 'Ohh! Valeria'
  16. 'Ohh! Viola'
  17. 'O'Harra'
  18. 'Ohigan Gibōshi'
  19. 'Ohio Blue'
  20. 'Ohio River'
  21. 'OHS Bryan's Blue'
  22. 'OHS Butter Pat'
  23. 'OHS Calamari'
  24. 'OHS Juno'
  25. 'OHS Love in the Mist'
  26. 'OHS Margot's Delight'
  27. 'OHS Udo's Labour'
  28. 'Oil on Canvas'
  29. 'Oil Paint'
  30. 'Ojibway'
  31. H. okamotoi
  32. 'Okan'
  33. 'Okaydokey'
  34. 'Okazaki'
  35. 'Okazaki Hajime'
  36. 'Okazaki Special'
  37. 'Okeanos'
  38. 'Okefenokee'
  39. 'Okobaji'
  40. 'OKUHIDA'
  41. 'Okukuji Nakafu Iwa'
  42. 'Okutama'
  43. 'Okutama Nakafu'
  44. 'Okutama Nishiki'
  45. 'Okuyama Gibōshi'
  46. 'Old Arrowhead'
  47. 'Old Bill'
  48. 'Old Black Magic'
  49. 'Old Blue Eyes'
  50. 'Old Blue Whaler'
  51. 'Old Cadillac'
  52. 'Old Cardboard Boxes'
  53. 'Old Coot'
  54. 'Old Faithful'
  55. 'Old Frosty'
  56. 'Old Glory'
  57. 'Old Gnarly'
  58. 'Old Gold Edge'
  59. 'Old Hercules'
  60. 'Old Hump Back'
  61. 'Old Ironsides'
  62. 'Old Jerusalem Road'
  63. 'Old Man and the Sea'
  64. 'Old Rough House'
  65. 'Old School'
  66. 'Old Smokey'
  67. 'Old Smoky'
  68. 'Old Weathersfield'
  69. 'Old Yeller'
  70. 'Oldie but Goldie'
  71. 'Olga'
  72. 'Olga Gibosa'
  73. 'Olga Gibōshi'
  74. 'Olga Thiemann Dwarf Glaucous'
  75. 'Olga Thiemann Dwarf Grey Leaf'
  76. 'Olga's Shiny Leaf'
  77. 'Olive Bailey Langdon'
  78. 'Olive Branch'
  79. 'Olive Oil'
  80. 'Olive Oyl'
  81. 'Olive Pauley's Seedling #5'
  82. 'Olive's Freckles'
  83. 'Oliver'
  84. 'Oliver Garden'
  85. 'Olivia'
  86. 'Olympic Edger'
  87. 'Olympic Fab Five'
  88. 'Olympic Glacier'
  89. 'Olympic Gold'
  90. 'Olympic Gold Medal'
  91. 'Olympic Magic'
  92. 'Olympic Mist'
  93. 'Olympic Silver Medal'
  94. 'Olympic Sunrise'
  95. 'Olympic Torch'
  96. 'Olympic Twilight'
  97. 'Omaha'
  98. 'Oma's Sunrise'
  99. 'Omar the Tentmaker'
  100. 'Omatsu-san Nishiki'
  101. 'Omega'
  102. 'OmegaOmega'
  103. 'OMG'
  104. 'Omlett'
  105. 'Omoto'
  106. 'On Angel Wings'
  107. 'On Fire'
  108. 'On Golden Pond'
  109. 'On Parade'
  110. 'On Show'
  111. 'On Stage'
  112. 'On the Border'
  113. 'On the Edge'
  114. 'On the Marc'
  115. 'Once upon a Time'
  116. 'One and Only'
  117. 'One Cent'
  118. 'One Fine Day'
  119. 'One Iota'
  120. 'One Iota Streaked'
  121. 'One Iota Supreme'
  122. 'One Last Dance'
  123. 'One Man's Treasure'
  1. 'Oneida'
  2. 'Only Time'
  3. 'Only You'
  4. 'Onoda'
  5. 'Onoda Type II'
  6. 'Ontario Blue'
  7. 'Ooh La La'
  8. 'Ooltewah'
  9. 'OOME'
  10. 'Ooshima-jishi'
  11. 'Ooshima-jishi Hachijo'
  12. "OP#2BL"
  13. 'Opal Scepter'
  14. 'Opal Tiara'
  15. 'Open Hearted'
  16. 'Ophir'
  17. 'Opipara'
  18. 'Opipara Koriyama'
  19. 'Opipara Noble One'
  20. 'Opipara Omatsa San'
  21. 'Oplosa'
  22. 'Ops'
  23. 'Oracle'
  24. 'Orange Crush'
  25. 'Orange Ice'
  26. 'Orange Joy'
  27. 'Orange Marmalade'
  28. 'Orange Rose'
  29. 'Orange Slices'
  30. 'Orange Star'
  31. 'Orca Whale'
  32. 'Oreo Cookies'
  33. 'Oreo Cream'
  34. 'Oriana'
  35. 'Oriental Sunrise'
  36. 'Origami'
  37. 'Orinoco Flow'
  38. 'Orion's Belt'
  39. 'Orleans Island'
  40. 'Orphan Annie'
  41. 'Orphan Child'
  42. 'Orphan Train Rider'
  43. 'Orphan Train Ruffian'
  44. 'Orphan Train Twins'
  45. 'Oshima Silk'
  46. 'Oshimajishi'
  47. 'Oshkosh'
  48. 'Osiris Bleu Nuit'
  49. 'Osiris Blue Night'
  50. 'Osiris Folichon'
  51. 'Osiris Giant Green'
  52. 'Osiris Illumination'
  53. 'Osiris Insomniaque'
  54. 'Osiris Le Petit Roi'
  55. 'Osiris Louis Cyr'
  56. 'Osiris Marie Robillard'
  57. 'Osiris Mignonne'
  58. 'Osiris Mirage'
  59. 'Osiris Obscure'
  60. 'Osiris Ovation'
  61. 'Osiris Pacha'
  62. 'Osiris Petite Prince'
  63. 'Osiris Prestige'
  64. 'Osiris Sentinelle'
  65. 'Osiris Soleil Levant'
  66. 'Osiris Trouvaille'
  67. 'Osprey'
  68. 'Otafuku'
  69. 'Otao Keikoku'
  70. 'Otaras Angel'
  71. 'Otaras Sunrise'
  72. 'Otome'
  73. 'Otome Gibōshi'
  74. 'Otome Gibōshi Fukurin'
  75. 'Otome Gokoro'
  76. 'Otome-no-Ka'
  77. 'Otome-no-Mai'
  78. 'Otome-no-Mainakafi'
  79. 'Otome-no-Niji'
  80. 'Otome Shirofukurin'
  81. 'Otome Shironakafu'
  82. 'Ototo San'
  83. 'Ottawa'
  84. 'Otter Point'
  85. 'Our Child'
  86. 'Our Friend Reldon'
  87. 'Out of Print'
  88. 'Out of the Blue'
  89. 'Out of the Darkness'
  90. 'Out of the Fog'
  91. 'Out of This World'
  92. 'Outer Banks'
  93. 'Outer Limits'
  94. 'Outer Space'
  95. 'Outhouse Delight'
  96. 'Outrageous'
  97. 'Outrageous Benedict'
  98. 'Outrageous Dragon'
  99. 'Outrigger'
  100. 'Outside'
  101. 'Ovalwood'
  102. 'Ovata'
  103. 'Ovation'
  104. 'Over the Moon'
  105. 'Over the Rainbow'
  106. 'Over the Waves'
  107. 'Over Yu Wu'
  108. 'Overserved'
  109. 'Owen Online'
  110. 'Owens Outrage'
  111. 'Oxford Blue'
  112. 'Oxford Blue Top'
  113. 'Oxheart'
  114. 'Oxymoron'
  115. 'Oyo Como Va'
  116. 'Oyster Crackers'
  117. 'Oz'
  118. 'Ozaki Special'
  119. 'Ozark Welcome'
  120. 'Oze'
  121. 'Oze-maruba-shirobana'
  122. 'Oze Shirobana Mizu'
  123. 'Ozzfest'


Copyrightę 2000 -