List of Award of Garden Merit magnolias

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+
M. 'Caerhays Surprise'[6]	2012	H5	pink	no	8 × 8
M. campbellii 'Darjeeling'	2012	H4	deep pink/wine	no	10 × 4
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
M. denudata[9] (yulan)	1993	H6	white	yes	12 × 12
M. 'Elizabeth'[10]	1993	H6	pale yellow	yes	12 × 8
M. 'Galaxy'[11]	1993	H6	rose-pink	no	12 × 8
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
M. × loebneri 'Donna'[17]	2012	H6	white	yes	8 × 8
M. × loebneri 'Leonard Messel'[18]	1993	H6	lilac/pale pink	yes	8 × 8
M. × loebneri 'Mag's Pirouette'	2012	H6	white	yes	4 × 3
M. × loebneri 'Merrill'[19]	1993	H6	white	no	8 × 8
M. × loebneri 'Wildcat'	2012	H6	white	no	4 × 3
M. 'Lois'[20]	2012	H6	primrose yellow	yes	12 × 8
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
M. 'Sayonara'[23]	1993	H5	white/purple	no	8 × 4
M. sieboldii 'Colossus'[24]	2012	H6	white/red	yes	8 × 8+
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
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
M. 'Susan'[34]	1993	H6	purple/pink	yes	4 × 4
M. 'Sweetheart'	2012	H5	pink	yes	6 × 4
M. wilsonii[35]	1993	H6	white/crimson	yes	8 × 8
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. Retrieved 2017-01-15.
2. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
3. "RHS hardiness rating". Royal Horticultural Society. Retrieved 21 Nov 2014.
4. "Magnolia 'Athene' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-20.
5. "Magnolia 'Caerhays Belle'". Royal Horticultural Society. 2017. Retrieved 2017-01-20.
6. "Magnolia 'Caerhays Surprise' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-20.
7. "Magnolia 'Daphne' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
8. "Magnolia 'David Clulow' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
9. "Magnolia denudata AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
10. "Magnolia 'Elizabeth' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
11. "Magnolia 'Galaxy' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
12. "Magnolia 'George Henry Kern' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
13. "Magnolia 'Gold Star'". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
14. "Magnolia grandiflora 'Kay Parris' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
15. "Magnolia 'Heaven Scent' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
16. "Magnolia liliiflora 'Nigra' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
17. "Magnolia × loebneri 'Donna' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
18. "Magnolia × loebneri 'Leonard Messel' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
19. "Magnolia × loebneri 'Merrill' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
20. "Magnolia 'Lois' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
21. "Magnolia 'Milky Way' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
22. "Magnolia salicifolia 'Wada's Memory' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
23. "Magnolia 'Sayonara' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
24. "Magnolia sieboldii 'Colossus' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
25. "Magnolia × soulangeana 'Brozzonii' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
26. "Magnolia 'Spectrum' AGM". Royal Horticultural Society. 2017. Retrieved 2020-02-18.
27. "Magnolia sprengeri var. diva 'Burncoose' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
28. "Magnolia sprengeri var. diva 'Copeland Court' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
29. "Magnolia sprengeri var. diva 'Eric Savill' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
30. "Magnolia 'Star Wars' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
31. "Magnolia stellata 'Centennial' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
32. "Magnolia stellata 'Jane Platt' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
33. "Magnolia stellata 'Royal Star' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
34. "Magnolia 'Susan' AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
35. "Magnolia wilsonii AGM". RHS Plant Selector. Royal Horticultural Society. Retrieved 2020-02-18.
36. "Magnolia 'Yellow Lantern' AGM". Royal Horticultural Society. 2017. Retrieved 2017-01-23.
37. http://apps.rhs.org.uk/plantselector/plant?plantid=1221 ^{[dead link]}
38. "Magnolia × soulangeana 'Lennei'". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
39. "Magnolia obovata Thunb". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
40. "Magnolia × soulangeana 'Rustica Rubra'". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
41. "Magnolia salicifolia". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
42. "Magnolia stellata". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.
43. "Magnolia stellata 'Water Lily'". RHS Plant Selector. Royal Horticultural Society. Retrieved 2013-05-19.