Biology:List of Award of Garden Merit magnolias

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Below is a list of magnolia species and cultivars which currently (2016)[1] hold the Royal Horticultural Society's Award of Garden Merit. Magnolias are shrubs or trees which put on a showy display of tulip-like flowers, often scented, in early to late spring. Many are slow-growing and may take several years to start flowering. They are suitable for cultivation in parks or gardens in temperate regions.[2] M. stellata is suitable for smaller gardens. All are deciduous except for M. grandiflora, which is evergreen. The AGM citation includes a hardiness rating:[3] all of the plants listed here are rated H6 (hardy down to -20 °C to -15 °C) or H5 (hardy down to -15 °C to -10 °C). This is indicated in the column marked H. Nevertheless, magnolias prefer a sheltered spot, and flower buds may be damaged by late frosts. The maximum size (height and spread) is shown in metres.

Listing

Name AGM H Colour Scent Max size h×w Image
M. 'Athene'[4] 2012 H5 white/pink yes 8 × 8
M. 'Caerhays Belle'[5] 2012 H5 pink no 12+ × 8+ Magnolia Caerhays Belle (1).jpg
M. 'Caerhays Surprise'[6] 2012 H5 pink no 8 × 8
M. campbellii 'Darjeeling' 2012 H4 deep pink/wine no 10 × 4 Magnolia campbellii Darjeeling.jpg
M. 'Daphne'[7] 2012 H6 pale yellow no 8 × 8
M. David Clulow'[8] 2012 H5 white/pale pink no 8 × 8
M. 'Daybreak' 2012 H6 pink/red yes 10 × 3 Magnolia Daybreak.jpg
M. denudata[9] (yulan) 1993 H6 white yes 12 × 12 Magnolia denudata1.jpg
M. 'Elizabeth'[10] 1993 H6 pale yellow yes 12 × 8 Magnolia 'Elizabeth' (Hybrid Magnolia Cultivar) (27169503715).jpg
M. 'Galaxy'[11] 1993 H6 rose-pink no 12 × 8 Magnolia 'Galaxy' (7011952107).jpg
M. 'George Henry Kern'[12] 2012 H6 pale pink/purple no 4 × 2.5
M. 'Gold Star'[13] 2012 H6 creamy yellow no 8 × 4
M. grandiflora 'Kay Parris'[14] 2012 H5 creamy white yes 8 × 4
M. grandiflora 'Victoria' 2002 H5 white yes 10 × 8
M. 'Heaven Scent'[15] 1993 H6 rose pink yes 12 × 12
M. liliiflora 'Nigra'[16] 1993 H6 red/purple no 4 × 2.5 Magnolia liliiflora 'Nigra' in Jardin des Plantes, Paris 01.jpg
M. × loebneri 'Donna'[17] 2012 H6 white yes 8 × 8
M. × loebneri 'Leonard Messel'[18] 1993 H6 lilac/pale pink yes 8 × 8 Magnolia 'Leonard Messel'-IMG 2218.jpg
M. × loebneri 'Mag's Pirouette' 2012 H6 white yes 4 × 3
M. × loebneri 'Merrill'[19] 1993 H6 white no 8 × 8 Magnolia loebneri Merril1MTFL.jpg
M. × loebneri 'Wildcat' 2012 H6 white no 4 × 3
M. 'Lois'[20] 2012 H6 primrose yellow yes 12 × 8 Magnolia 'Lois'.JPG
M. 'Milky Way'[21] 2002 H5 white/pale pink no 8 × 4
M. 'Pegasus' 2012 H6 white/purple no 6 × 6
M. salicifolia 'Wada's Memory'[22] 1993 H6 white yes 12 × 8 Magnolia kewensis Wadas Memory1MTFL.jpg
M. 'Sayonara'[23] 1993 H5 white/purple no 8 × 4
M. sieboldii 'Colossus'[24] 2012 H6 white/red yes 8 × 8+ Magnolia sieboldii 'Colossus'.jpg
M. × soulangeana 'Brozzonii'[25] 1993 H5 white/purple no 8 × 8
M. × soulangeana 'Pickard's Schmetterling' 2012 H5 white/purple no 8+ × 8
M. 'Spectrum'[26] 2012 H6 pale pink/purple no 8 × 8
M. sprengeri var. diva 'Burncoose'[27] 2012 H6 purple/white no 12 × 8
M. sprengeri var. diva 'Copeland Court'[28] 2012 H6 bright pink no 8 × 8
M. sprengeri var. diva 'Eric Savill'[29] 2012 H6 bright pink/pale pink no 12 × 8
M. 'Star Wars'[30] 2002 H5 rose pink, double yes 8 × 4 Magnolia Star wars.jpg
M. stellata 'Centennial'[31] 2012 H6 white/pink yes 2.5 × 4
M. stellata 'Jane Platt'[32] 2012 H6 pale pink yes 2.5 × 4
M. stellata 'Royal Star'[33] 2012 H6 white yes 4 × 4 Star Magnolia Magnolia stellata 'Royal Star' Flower High DoF.jpg
M. 'Susan'[34] 1993 H6 purple/pink yes 4 × 4 Magnolia Susan.jpg
M. 'Sweetheart' 2012 H5 pink yes 6 × 4
M. wilsonii[35] 1993 H6 white/crimson yes 8 × 8 Magnolia wilsonii1UME.jpg
M. 'Yellow Lantern'[36] 2012 H6 pale yellow no 5 × 5

Withdrawn

Name Type Flower colour Dimensions h × w
M. grandiflora 'Exmouth' [37] tree f double white 8–12 m (26–39 ft) × 8–12 m (26–39 ft)
'Lennei'[38] shrub f purple/white 4–8 m (13–26 ft) × 2.5–4 m (8–13 ft)
M. obovata[39] tree cream 12–15 m (39–49 ft) × 8–12 m (26–39 ft)
'Rustica Rubra'[40] shrub f rose-pink 4–8 m (13–26 ft) × 4–8 m (13–26 ft)
M. salicifolia[41] tree white, fragrant 8–12 m (26–39 ft) × 4–8 m (13–26 ft)
M. stellata[42] shrub white 1.5–2.5 m (5–8 ft) × 2.5–4 m (8–13 ft)
M. stellata 'Water Lily'[43] shrub white 1.5–2.5 m (5–8 ft) × 2.5–4 m (8–13 ft)

References

  1. ↑ "RHS AGM List October 2016 (ornamentals)". Royal Horticultural Society. 2017. https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals. Retrieved 2017-01-15. 
  2. ↑ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. pp. 1136. ISBN 978-1405332965. 
  3. ↑ "RHS hardiness rating". Royal Horticultural Society. https://www.rhs.org.uk/plants/trials-awards/plant-awards/rhs-hardiness-rating. Retrieved 21 Nov 2014. 
  4. ↑ "Magnolia 'Athene' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/58435/i-Magnolia-i-Athene/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26query%3dmagnolia%2bathene%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-20. 
  5. ↑ "Magnolia 'Caerhays Belle'". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/43334/i-Magnolia-i-Caerhays-Belle/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dmagnolia%2bcaerhays%2bbelle%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-20. 
  6. ↑ "Magnolia 'Caerhays Surprise' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/43335/i-Magnolia-i-Caerhays-Surprise/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26context%3db%253d0%2526hf%253d10%2526l%253den%2526q%253dmagnolia%252bcaerhays%252bbelle%2526s%253ddesc%252528plant_merged%252529%2526sl%253dplantForm%26query%3dmagnolia%2bcaerhays%2bsurprise%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-20. 
  7. ↑ "Magnolia 'Daphne' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/181750/i-Magnolia-i-Daphne/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bdaphne%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  8. ↑ "Magnolia 'David Clulow' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/121925/i-Magnolia-i-David-Clulow/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bdavid%2bclulow%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  9. ↑ "Magnolia denudata AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/10694/Magnolia-denudata/Details. Retrieved 2020-02-18. 
  10. ↑ "Magnolia 'Elizabeth' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/93009/Magnolia-Elizabeth/Details. Retrieved 2020-02-18. 
  11. ↑ "Magnolia 'Galaxy' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/47918/Magnolia-Galaxy/Details. Retrieved 2020-02-18. 
  12. ↑ "Magnolia 'George Henry Kern' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/54163/i-Magnolia-i-George-Henry-Kern/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26context%3db%253d0%2526hf%253d10%2526l%253den%2526q%253dMagnolia%252bdaybreak%2526s%253ddesc%252528plant_merged%252529%2526sl%253dplantForm%26query%3dMagnolia%2bgeorge%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  13. ↑ "Magnolia 'Gold Star'". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/88252/i-Magnolia-i-Gold-Star/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26context%3db%253d0%2526hf%253d10%2526l%253den%2526q%253dMagnolia%252bgeorge%2526s%253ddesc%252528plant_merged%252529%2526sl%253dplantForm%26query%3dMagnolia%2bgold%2bstar%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  14. ↑ "Magnolia grandiflora 'Kay Parris' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/239932/i-Magnolia-grandiflora-i-Kay-Parris/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bkay%2bparris%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  15. ↑ "Magnolia 'Heaven Scent' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/63953/Magnolia-Heaven-Scent/Details. Retrieved 2020-02-18. 
  16. ↑ "Magnolia liliiflora 'Nigra' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/95584/Magnolia-liliiflora-Nigra/Details. Retrieved 2020-02-18. 
  17. ↑ "Magnolia × loebneri 'Donna' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/119226/i-Magnolia-i-×-i-loebneri-i-Donna/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26query%3dMagnolia%2bdonna%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  18. ↑ "Magnolia × loebneri 'Leonard Messel' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/10706/Magnolia-x-loebneri-Leonard-Messel/Details. Retrieved 2020-02-18. 
  19. ↑ "Magnolia × loebneri 'Merrill' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/46874/Magnolia-x-loebneri-Merrill/Details. Retrieved 2020-02-18. 
  20. ↑ "Magnolia 'Lois' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/141183/i-Magnolia-i-Lois/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26context%3db%253d0%2526hf%253d10%2526l%253den%2526q%253dMagnolia%252bwildcat%2526s%253ddesc%252528plant_merged%252529%2526sl%253dplantForm%26query%3dMagnolia%2blois%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  21. ↑ "Magnolia 'Milky Way' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/67119/Magnolia-Milky-Way/Details. Retrieved 2013-05-19. 
  22. ↑ "Magnolia salicifolia 'Wada's Memory' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/23721/Magnolia-salicifolia-Wada-s-Memory/Details. Retrieved 2013-05-19. 
  23. ↑ "Magnolia 'Sayonara' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/63114/Magnolia-Sayonara/Details. Retrieved 2020-02-18. 
  24. ↑ "Magnolia sieboldii 'Colossus' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/178464/i-Magnolia-sieboldii-i-Colossus/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26context%3db%253d0%2526hf%253d10%2526l%253den%2526q%253dMagnolia%252bpegasus%2526s%253ddesc%252528plant_merged%252529%2526sl%253dplantForm%26query%3dMagnolia%2bcolossus%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  25. ↑ "Magnolia × soulangeana 'Brozzonii' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/69738/Magnolia-x-soulangeana-Brozzonii/Details. Retrieved 2020-02-18. 
  26. ↑ "Magnolia 'Spectrum' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/62340/Magnolia-Spectrum/Details. Retrieved 2020-02-18. 
  27. ↑ "Magnolia sprengeri var. diva 'Burncoose' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/58212/i-Magnolia-sprengeri-i-var-i-diva-i-Burncoose/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bburncoose%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  28. ↑ "Magnolia sprengeri var. diva 'Copeland Court' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/88901/i-Magnolia-sprengeri-i-var-i-diva-i-Copeland-Court/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bcopeland%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  29. ↑ "Magnolia sprengeri var. diva 'Eric Savill' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/239625/i-Magnolia-sprengeri-i-var-i-diva-i-Eric-Savill/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bsavill%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  30. ↑ "Magnolia 'Star Wars' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/92931/Magnolia-Star-Wars/Details. Retrieved 2020-02-18. 
  31. ↑ "Magnolia stellata 'Centennial' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/72553/i-Magnolia-stellata-i-Centennial/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dtrue%26query%3dMagnolia%2bstellata%2bcentennial%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  32. ↑ "Magnolia stellata 'Jane Platt' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/41024/i-Magnolia-stellata-i-Jane-Platt/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bstellata%2bjane%2bplatt%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  33. ↑ "Magnolia stellata 'Royal Star' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/65432/i-Magnolia-stellata-i-Royal-Star/Details?returnurl=%2fplants%2fsearch-results%3fform-mode%3dfalse%26query%3dMagnolia%2bstellata%2broyal%2bstar%26aliaspath%3d%252fplants%252fsearch-results. Retrieved 2017-01-23. 
  34. ↑ "Magnolia 'Susan' AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/74490/Magnolia-Susan/Details. Retrieved 2020-02-18. 
  35. ↑ "Magnolia wilsonii AGM". RHS Plant Selector. Royal Horticultural Society. https://www.rhs.org.uk/Plants/10725/Magnolia-wilsonii/Details. Retrieved 2020-02-18. 
  36. ↑ "Magnolia 'Yellow Lantern' AGM". Royal Horticultural Society. 2017. https://www.rhs.org.uk/Plants/41990/Magnolia-Yellow-Lantern/Details. Retrieved 2017-01-23. 
  37. ↑ http://apps.rhs.org.uk/plantselector/plant?plantid=1221 [|permanent dead link|dead link}}]
  38. ↑ "Magnolia × soulangeana 'Lennei'". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=1231. Retrieved 2013-05-19. 
  39. ↑ "Magnolia obovata Thunb.". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=1224. Retrieved 2013-05-19. 
  40. ↑ "Magnolia × soulangeana 'Rustica Rubra'". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=3431. Retrieved 2013-05-19. 
  41. ↑ "Magnolia salicifolia". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=6262. Retrieved 2013-05-19. 
  42. ↑ "Magnolia stellata". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=1226. Retrieved 2013-05-19. 
  43. ↑ "Magnolia stellata 'Water Lily'". RHS Plant Selector. Royal Horticultural Society. http://apps.rhs.org.uk/plantselector/plant?plantid=6343. Retrieved 2013-05-19. 



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