List of Award of Garden Merit dahlias

The following is a list of dahlia cultivars which have gained the Royal Horticultural Society's Award of Garden Merit. They are tuberous perennials, originally from South America, with showy daisy-like composite flowerheads in all shades and combinations of white, yellow, orange, pink and red, flowering in late summer and autumn (fall). Much work has been done on the development of a range of flower shapes and sizes. They may be sold as dry tubers in Spring, and started off in heat before being planted out after all danger of frost has passed. Alternatively they can be purchased later in the season, in pots ready to flower. Dwarf bedding types are usually cultivated as annuals and discarded after flowering. In mild areas without penetrating frosts, mature plants can be overwintered in the garden; otherwise, they are lifted and stored in a frost free place. They are easily propagated from cuttings in Spring.[1]

'Moonfire' (VanDusen Botanical Garden, Stan Shebs)

Flower shapes can be divided into 14 main groups:-

  1. single: less than 10 cm (4 in) - open centred, with a single or double row of ray florets
  2. waterlily: miniature, small or medium sized blooms - double, with a small number of flattened, rounded ray florets
  3. collerette: 10–15 cm (4–6 in) - single row of flat ray florets surrounding an inner collar of shorter florets and a central disc
  4. anemone-flowered: 10–15 cm (4–6 in) - upward-pointing, tubular florets, surrounded by one or more rows of flattened ray florets
  5. pompon: 10 cm (4 in) - tightly spherical small blooms with florets in a scale-like arrangement
  6. ball: similar to pompon but larger in size
  7. semi-cactus: double flowers in a range of sizes; many pointed, recurved ray florets
  8. cactus: double flowers in a range of sizes; many pointed, recurved ray florets that are narrower than semi-cactus flowers
  9. decorative: fully double flowers with the central disc completely hidden; the broad florets may be pointed and twisted
  10. miscellaneous: including peony-flowered, orchid-flowered, chrysanthemum-flowered, dwarf bedding

As of 2015, 124 cultivars are listed.[2] Maximum dimensions of plants are shown in centimetres.

NameTypeColourHeight (cm)Spread (cm)Ref
Allan Sparkeswaterlilypink150100[3]
Almand's Climaxdecorativepink100100[4]
Alva's Dorissemi-cactusred12060[5]
Alva's Supremedecorativeyellow (pale)12060[6]
Ann Breckenfeldercollerettered/yellow170100[7]
April Heathercolleretteyellow/pink12550[8]
Asahi Chohjeanemonered/white150100[9]
Bednall Beautydwarf beddingred5050[10]
Bishop of Llandaffpeonyred11045[11]
Blyton Softer Gleamdecorativeyellow/orange135100[12]
Bridge View Alohasemi-cactusyellow/red150100[13]
Brookfield Delightsingleorange5050[14]
Charlie Dimmockwaterlilyorange/yellow185150[15]
Chat Noirsemi-cactusred/purple170100[16]
Clair de Lunecollerettecream11060[17]
Cream Alva'sdecorativecream150100[18]
David Howarddecorativeyellow (bronze)10050[19]
Don Hillcollerettered/yellow150100[20]
Dovegrovesinglered10050[21]
Edwin's Sunsetwaterlilyred12050[22]
Ellen Hustondwarf beddingorange (scarlet)5050[23]
Exotic Dwarfsingle lilliputpink/purple/yellow4040[24]
Fascinationpeonypink6045[25]
Figurinewaterlilypink (pale)10050[26]
Finchcockswaterlilyorange12060[27]
Freya's Paso Dobleanemonewhite/yellow11060[28]
Fusiondecorativewhite/pale pink10050[29]
Gallery Art Deco[30]decorativeorange/red10050[31]
Gallery Art Fairdecorativewhite5050[32]
Gallery Art Nouveau[33]decorativepink (raspberry)10050[34]
Gallery La Tourdecorativepink5050[35]
Gallery Leonardo[36]decorativepink5050[37]
Gallery Pablo[38]decorativepink/yellow5050[39]
Gallery Rembrandt[40]decorativepink (bright)10050[41]
Gallery Renoir[42]decorativepink (rose)5050[43]
Gallery Vincent[44]decorativeyellow/orange5050[45]
Geoffrey Kentdecorativered10050[46]
Glorie van Heemstededecorativeyellow13060[47]
Grenadierdecorativered100100[48]
Hamari Accordsemi-cactusyellow (pale)12060[49]
Hamari Bridesemi-cactuswhite12060[50]
Hamari Golddecorativeyellow12060[51]
Hamari Roséballpink/yellow12060[52]
Hamilton Lilliandecorativeorange12060[53]
Happy Days Purple='Hdpu165'singlepurple4040[54]
Happy Single Flamesinglered/yellow8050[55]
Happy Single Princesssinglepink/white8050[56]
Happy Single Winksinglepurple-pink/red6050[57]
Harvest Samanthasingle lilliputpink (deep)7050[58]
Hillcrest Candysemi-cactuspink/white15050[59]
Hillcrest Desirecactusorange12060[60]
Hillcrest Regalcollerettered (deep)12060[61]
Hillcrest Royalcactuspurple12060[62]
Honkasingle orchidyellow10050[63]
Jodie Wilkinsonballpeach/lemon12050[64]
Jomandaballorange11060[65]
Josie Gottballwhite/purple10050[66]
Karenglendecorativeorange11060[67]
Kenora Sunsetsemi-cactusyellow/orange12060[68]
Kenora Valentinedecorativered12060[69]
Kidd's Climaxdecorativered11060[70]
Kilburn Rosewaterlilypink/peach10050[71]
Knockoutsingleyellow/orange100100[72]
Lakeland Sunsetcactusyellow100100[73]
Le Castelwaterlilywhite100100[74]
Lemon Eleganssemi-cactusyellow (lemon)130100[75]
Lilac Marstondecorativelila/purple150100[76]
Lilac Taratahicactuspink150100[77]
Lismore Williewaterlilyyellow (bronze)12060[78]
Magenta Starsinglepink (magenta)130100[79]
Maiko Girldouble orchidpink10050[80]
Marie Schnuggsingle orchidred/yellow5050[81]
Mary's Jomandaballpink/purple150100[82]
Mayan Pearldouble orchidpink6550[83]
Melody Harmonydecorativepink/white8050[84]
Moonfiredwarf beddingyellow/red7545[85]
My-nute Blendmiscorange/yellow5050[86]
Oakwood Narangadecorativeorange10050[87]
Ocean Birddecorativepink10050[88]
Omosingle lilywhite/yellow4040[89]
Otto's Thrilldecorativepink (soft)11050[90]
Pearl of Heemstededecorativepink (silvery)10045[91]
Pink Giraffedouble orchidpink13550[92]
Pink Pastellesemi-cactuspink12060[93]
Pooh - Swan Islandcolleretteorange/yellow10050[94]
Preston Parkdwarf beddingred (scarlet)4545[95]
Pretty Woman='Vdtg43'singlepink/purple4040[96]
Rhonda Suzannepomponpurple (pale)15050[97]
Ruby Murray[98]decorativepink (deep)7550[99]
Ryecroft Janballwhite165100[100]
Ryecroft Margeanemonepink/yellow150100[101]
Shep's Memorywaterlilypeach180100[102]
Small Worldpomponwhite11060[103]
So Daintysemi-cactusorange (pale)11060[104]
Tally Ho[105]miscellaneousorange (pale)6045[106]
Taratahi Rubywaterlilyred150100[107]
Trelyn Crimsoncollerettered12050[108]
Trelyn Daisycollerettewhite/yellow140140[109]
Trelyn Kiwisemi-cactuspink/white10050[110]
Trelyn Rhiannoncactuspink/yellow180100[111]
Twyning's After Eightsinglewhite100100[112]
Twyning's Revelsinglepink (deep)120100[113]
Waltzing Mathildamisc.orange/pink7050[114]
Westerton Follyballpink (deep)12050[115]
Weston Piratecactusred (ruby)150100[116]
Weston Spanish Dancercactusyellow/red150100[117]
Weston Stardustcactuspink/yellow10050[118]
White Alva'sdecorativewhite12060[119]
White Balletdecorativewhite9060[120]
Witteman's Superbasemi-cactusred (crimson)150100[121]
Wootton Cupidballpink/yellow11060[122]
Wootton Impactsemi-cactusyellow (bronze)11060[123]
Yellow Hammerdwarf beddingyellow (pale)6045[124]
Zorro[125]decorativered (crimson)12060[126]

References

  1. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  2. RHS 2015, Search for AGM Plants: Dahlia.
  3. "RHS Plant Selector - Dahlia 'Allan Sparkes'". Retrieved 12 February 2020.
  4. "RHS Plant Selector - Dahlia 'Almand's Climax'". Retrieved 14 February 2020.
  5. "RHS Plant Selector - Dahlia 'Alva's Doris'". Retrieved 12 February 2020.
  6. "RHS Plant Selector - Dahlia 'Alva's Supreme'". Retrieved 12 February 2020.
  7. "RHS Plant Selector - Dahlia 'Ann Breckenfelder'". Retrieved 12 February 2020.
  8. "RHS Plant Selector - Dahlia 'April Heather'". Retrieved 12 February 2020.
  9. "RHS Plant Selector - Dahlia 'Asahi Chohje'". Retrieved 12 February 2020.
  10. "RHS Plant Selector - Dahlia 'Bednall Beauty'". Retrieved 12 February 2020.
  11. "RHS Plant Selector - Dahlia 'Bishop of Llandaff'". Retrieved 14 February 2020.
  12. "RHS Plant Selector - Dahlia 'Blyton Softer Gleam'". Retrieved 12 February 2020.
  13. "RHS Plant Selector - Dahlia 'Bridge View Aloha'". Retrieved 12 February 2020.
  14. "RHS Plant Selector - Dahlia 'Brookfield Delight'". Retrieved 12 February 2020.
  15. "RHS Plant Selector - Dahlia 'Charlie Dimmock'". Retrieved 12 February 2020.
  16. "RHS Plant Selector - Dahlia 'Chat Noir'". Retrieved 12 February 2020.
  17. "RHS Plant Selector - Dahlia 'Clair de Lune'". Retrieved 14 February 2020.
  18. "RHS Plant Selector - Dahlia 'Cream Alva's'". Retrieved 14 February 2020.
  19. "RHS Plant Selector - Dahlia 'David Howard'". Retrieved 14 February 2020.
  20. "RHS Plant Selector - Dahlia 'Eldwin's Sunset'". Retrieved 14 February 2020.
  21. "RHS Plant Selector - Dahlia 'Dovegrove'". Retrieved 14 February 2020.
  22. "RHS Plant Selector - Dahlia 'Eldwin's Sunset'". Retrieved 12 February 2020.
  23. "RHS Plant Selector - Dahlia 'Ellen Huston'". Retrieved 12 February 2020.
  24. "RHS Plant Selector - Dahlia 'Ellen Huston'". Retrieved 12 February 2020.
  25. "RHS Plant Selector - Dahlia 'Fascination'". Retrieved 12 February 2020.
  26. "RHS Plant Selector - Dahlia 'Figurine'". Retrieved 12 February 2020.
  27. "RHS Plant Selector - Dahlia 'Finchcocks'". Retrieved 12 February 2020.
  28. "RHS Plant Selector - Dahlia 'Freya's Paso Doble'". Retrieved 12 February 2020.
  29. "RHS Plant Selector - Dahlia 'Fusion'". Retrieved 14 February 2020.
  30. named after the 20th-century art style Art Deco
  31. "RHS Plant Selector - Dahlia 'Gallery Art Deco'". Retrieved 14 February 2020.
  32. "RHS Plant Selector - Dahlia 'Gallery Art Fair'". Retrieved 14 February 2020.
  33. named after the 19th/20th-century art style Art Nouveau
  34. "RHS Plant Selector - Dahlia 'Gallery Art Nouveau'". Retrieved 14 February 2020.
  35. "RHS Plant Selector - Dahlia 'Gallery La Tour'". Retrieved 12 February 2020.
  36. named after the Renaissance artist Leonardo da Vinci
  37. "RHS Plant Selector - Dahlia 'Gallery Leonardo'". Retrieved 12 February 2020.
  38. named after the Spanish painter Pablo Picasso
  39. "RHS Plant Selector - Dahlia 'Gallery Pablo'". Retrieved 12 February 2020.
  40. named after the Dutch painter Rembrandt
  41. "RHS Plant Selector - Dahlia 'Gallery Rembrandt'". Retrieved 12 February 2020.
  42. named after the French painter Pierre-Auguste Renoir
  43. "RHS Plant Selector - Dahlia 'Gallery Renoir'". Retrieved 12 February 2020.
  44. named after the Dutch painter Vincent van Gogh
  45. "RHS Plant Selector - Dahlia 'Gallery Vincent'". Retrieved 12 February 2020.
  46. "RHS Plant Selector - Dahlia 'Geoffrey Kent'". Retrieved 14 February 2020.
  47. "RHS Plant Selector - Dahlia 'Glorie van Heemsteede'". Retrieved 14 February 2020.
  48. "RHS Plant Selector - Dahlia 'Grenadier'". Retrieved 14 February 2020.
  49. "RHS Plant Selector - Dahlia 'Hamari Accord'". Retrieved 12 February 2020.
  50. "RHS Plant Selector - Dahlia 'Hamari Bride'". Retrieved 12 February 2020.
  51. "RHS Plant Selector - Dahlia 'Hamari Gold'". Retrieved 14 February 2020.
  52. "RHS Plant Selector - Dahlia 'Hamari Rosé'". Retrieved 12 February 2020.
  53. "RHS Plant Selector - Dahlia 'Hamilton Lillian'". Retrieved 12 February 2020.
  54. "RHS Plant Selector - Happy Days Purple='Hdpu165'". Retrieved 12 February 2020.
  55. "RHS Plant Selector - Dahlia 'Happy Single Flame'". Retrieved 12 February 2020.
  56. "RHS Plant Selector - Dahlia 'Happy Single Princess'". Retrieved 12 February 2020.
  57. "RHS Plant Selector - Dahlia 'Happy Single Wink'". Retrieved 12 February 2020.
  58. "RHS Plant Selector - Dahlia 'Harvest Samantha'". Retrieved 12 February 2020.
  59. "RHS Plant Selector - Dahlia 'Hillcrest Candy'". Retrieved 12 February 2020.
  60. "RHS Plant Selector - Dahlia 'Hillcrest Desire'". Retrieved 12 February 2020.
  61. "RHS Plant Selector - Dahlia 'Hillcrest Regal'". Retrieved 12 February 2020.
  62. "RHS Plant Selector - Dahlia 'Hillcrest Royal'". Retrieved 12 February 2020.
  63. "RHS Plant Selector - Dahlia 'Honka'". Retrieved 12 February 2020.
  64. "RHS Plant Selector - Dahlia 'Jodie Wilkinson '". Retrieved 14 February 2020.
  65. "RHS Plant Selector - Dahlia 'Jomanda'". Retrieved 14 February 2020.
  66. "RHS Plant Selector - Dahlia 'Karenglen'". Retrieved 14 February 2020.
  67. "RHS Plant Selector - Dahlia 'Karenglen'". Retrieved 14 February 2020.
  68. "RHS Plant Selector - Dahlia 'Kenora Sunset'". Retrieved 12 February 2020.
  69. "RHS Plant Selector - Dahlia 'Kenora Valentine'". Retrieved 12 February 2020.
  70. "RHS Plant Selector - Dahlia 'Kidd's Climax'". Retrieved 12 February 2020.
  71. "RHS Plant Selector - Dahlia 'Knockout'". Retrieved 12 February 2020.
  72. "RHS Plant Selector - Dahlia 'Knockout'". Retrieved 12 February 2020.
  73. "RHS Plant Selector - Dahlia 'Lakeland Sunset'". Retrieved 12 February 2020.
  74. "RHS Plant Selector - Dahlia 'Le Castel'". Retrieved 12 February 2020.
  75. "RHS Plant Selector - Dahlia 'Lemon Elegans'". Retrieved 12 February 2020.
  76. "RHS Plant Selector - Dahlia 'Lilac Marston'". Retrieved 12 February 2020.
  77. "RHS Plant Selector - Dahlia 'Lilac Taratahi'". Retrieved 12 February 2020.
  78. "RHS Plant Selector - Dahlia 'Lismore Willie'". Retrieved 14 February 2020.
  79. "RHS Plant Selector - Dahlia 'Magenta Star". Retrieved 14 February 2020.
  80. "RHS Plant Selector - Dahlia 'Maiko Girl'". Retrieved 14 February 2020.
  81. "RHS Plant Selector - Dahlia 'Marie Schnugg'". Retrieved 14 February 2020.
  82. "RHS Plant Selector - Dahlia 'Mary's Jomanda'". Retrieved 12 February 2020.
  83. "RHS Plant Selector - Dahlia 'Mayan Pearl'". Retrieved 12 February 2020.
  84. "RHS Plant Selector - Dahlia 'Melody Harmony'". Retrieved 12 February 2020.
  85. "RHS Plant Selector - Dahlia 'Moonfire'". Retrieved 14 February 2020.
  86. "RHS Plant Selector - Dahlia 'My-nute Blend'". Retrieved 12 February 2020.
  87. "RHS Plant Selector - Dahlia 'Oakwood Naranga'". Retrieved 12 February 2020.
  88. "RHS Plant Selector - Dahlia 'Ocean Bird'". Retrieved 12 February 2020.
  89. "RHS Plant Selector - Dahlia 'Omo'". Retrieved 12 February 2020.
  90. "RHS Plant Selector - Dahlia 'Otto's Thrill'". Retrieved 12 February 2020.
  91. "RHS Plant Selector - Dahlia 'Pearl of Heemstede'". Retrieved 12 February 2020.
  92. "RHS Plant Selector - Dahlia 'Pink Giraffe'". Retrieved 12 February 2020.
  93. "RHS Plant Selector - Dahlia 'Pink Pastelle'". Retrieved 12 February 2020.
  94. "RHS Plant Selector - Dahlia 'Pooh - Swan Island'". Retrieved 12 February 2020.
  95. "RHS Plant Selector - Dahlia 'Preston Park'". Retrieved 14 February 2020.
  96. "RHS Plant Selector - Dahlia Pretty Woman='Vdtg43'". Retrieved 14 February 2020.
  97. "RHS Plant Selector - Dahlia 'Rhonda Suzanne'". Retrieved 12 February 2020.
  98. Ruby Murray was a British singer
  99. "RHS Plant Selector - Dahlia 'Ruby Murray'". Retrieved 12 February 2020.
  100. "RHS Plant Selector - Dahlia 'Ryecroft Jan'". Retrieved 12 February 2020.
  101. "RHS Plant Selector - Dahlia 'Ryecroft Marge'". Retrieved 12 February 2020.
  102. "RHS Plant Selector - Dahlia 'Shep's Memory'". Retrieved 12 February 2020.
  103. "RHS Plant Selector - Dahlia 'Small World'". Retrieved 12 February 2020.
  104. "RHS Plant Selector - Dahlia 'So Dainty'". Retrieved 14 February 2020.
  105. named after the foxhunting term "Tally Ho"
  106. "RHS Plant Selector - Dahlia 'Tally Ho'". Retrieved 14 February 2020.
  107. "RHS Plant Selector - Dahlia 'Taratahati Ruby'". Retrieved 14 February 2020.
  108. "RHS Plant Selector - Dahlia 'Trelyn Crimson' '". Retrieved 12 February 2020.
  109. "RHS Plant Selector - Dahlia 'Trelyn Daisy' '". Retrieved 14 February 2020.
  110. "RHS Plant Selector - Dahlia 'Trelyn Kiwi' '". Retrieved 14 February 2020.
  111. "RHS Plant Selector - Dahlia 'Trelyn Rhiannon' '". Retrieved 14 February 2020.
  112. "RHS Plant Selector - Dahlia 'Twyning's After Eight'". Retrieved 12 February 2020.
  113. "RHS Plant Selector - Dahlia 'Twyning's Revel'". Retrieved 12 February 2020.
  114. "RHS Plant Selector - Dahlia 'Waltzing Mathilda'". Retrieved 12 February 2020.
  115. "RHS Plant Selector - Dahlia 'Weston Pirate'". Retrieved 12 February 2020.
  116. "RHS Plant Selector - Dahlia 'Weston Pirate'". Retrieved 12 February 2020.
  117. "RHS Plant Selector - Dahlia 'Weston Spanish Dancer'". Retrieved 12 February 2020.
  118. "RHS Plant Selector - Dahlia 'Weston Stardust'". Retrieved 12 February 2020.
  119. "RHS Plant Selector - Dahlia 'White Alva's'". Retrieved 14 February 2020.
  120. "RHS Plant Selector - Dahlia 'White Ballet'". Retrieved 14 February 2020.
  121. "RHS Plant Selector - Dahlia 'Witteman's Superba'". Retrieved 14 February 2020.
  122. "RHS Plant Selector - Dahlia 'Wootton Cupid'". Retrieved 14 February 2020.
  123. "RHS Plant Selector - Dahlia 'Wootton Impact'". Retrieved 14 February 2020.
  124. "RHS Plant Selector - Dahlia 'Yellow Hammer'". Retrieved 12 February 2020.
  125. named after the fictional outlaw Zorro
  126. "RHS Plant Selector - Dahlia 'Zorro'". Retrieved 12 February 2020.
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