Magnolia Cultivars Q–R

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Credits

Julian Sutton (2022)

Recommended citation
Sutton, J. (2022), 'Magnolia Cultivars Q–R' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/magnolia/magnolia-cultivars-q-r/). Accessed 2022-12-04.

Genus

Other taxa in genus

Glossary

Credits

Julian Sutton (2022)

Recommended citation
Sutton, J. (2022), 'Magnolia Cultivars Q–R' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/magnolia/magnolia-cultivars-q-r/). Accessed 2022-12-04.

Our primary references for cultivar information are Jim Gardiner’s (2000) ‘Magnolias: a Gardener’s Guide’ and Matt Lobdell’s (2021) register of cultivars for Magnolia Society International. Further references are cited where relevant. Other important accounts of cultivars include Dorothy Callaway’s (1994) ‘The World of Magnolias’ and (in German) Beet Heerdegen and Reto Eisenhut’s (2020) ‘Magnolien und Tulpenbäume: Magnoliaceae’. Magnolia Society International’s journal ‘Magnolia’ is an ongoing trove of information.


'Queen Caroline'

See Magnolia campbellii ‘Queen Caroline’.


'Randy'

M. liliiflora 'Nigra' × M. stellata 'Rosea'

RHS Hardiness Rating: H6

USDA Hardiness Zone: 4-8

Flowers precocious, to 12 cm across; buds erect initially, later sickle shaped; tepals 9–11, red-purple outside, ageing rich pink, white inside. A medium to large rounded shrub. A de Vos & Kosar hybrid raised at the US National Arboretum before 1968; named for one of Francis de Vos’ daughters.


'Raspberry Fun'

See Magnolia × loebneri ‘Raspberry Fun’.


'Raspberry Ice'

M. liliiflora × (M. × veitchii)

RHS Hardiness Rating: H5

USDA Hardiness Zone: 7-9

Flowers precocious; tepals 12, rich pink outside, paler towards the tips, white inside; a large shrub or spreading multistemmed small tree. One of the original Gresham hybrids, named in 1962.


'Raspberry Swirl'

M. liliiflora 'Darkest Purple' × ​​​​​​​ M. sprengeri var. diva

RHS Hardiness Rating: H6

USDA Hardiness Zone: 6-9

Flowers precocious, late (continuing into May in S England), erect; tepals ~11, deep-purple-pink on both surfaces. An upright small tree registered 1990 by Frank Galyon, TN, from a cross made about 1965.


'Ravenswood'

See Magnolia virginiana ‘Ravenswood’.


'Rebekka's Perfume'

M. × soulangeana 'Amabilis' × M. 'Mark Jury'

Synonyms / alternative names
Magnolia 'Rebecca's Perfume'

Flowers large, cup- to star-shaped, before the leaves; strong Lily of the Valley (Convallaria majalis) fragrance; tepals 9, waxy, white with a pink flush at the base. Lateral branches somewhat weeping. Raised by Michael Gottschalk, Germany, before 2000.


'Red As'

(M. × soulangeana 'Pickard's Ruby') × M. 'Vulcan'

Synonyms / alternative names
Magnolia 'Red As Red'

RHS Hardiness Rating: H6

USDA Hardiness Zone: 6-9

Flowers precocious, globular and upright, dark purple-red; a compact, upright small tree or large shrub (Edwards & Marshall 2019). Raised by Ian Baldick, New Zealand before 2004, introduced by Duncan & Davies Nurseries. If the cultivar name seems not to make sense, heavily stress the second word. For discussion of which form of the name has priority, see Lobdell (2021).


'Ricki'

M. liliiflora 'Nigra' × M. stellata 'Rosea'

RHS Hardiness Rating: H6

USDA Hardiness Zone: 4-9

Flowers precocious, to 15 cm across from slender, erect buds, red-purple outside, white (sometimes stained purplish) inside; tepals 10–15, often twisted. A medium to large rounded shrub. A de Vos & Kosar hybrid raised at the US National Arboretum before 1968; named for one of Francis de Vos’ daughters.


'Robert's Dream'

See Magnolia × proctoriana ‘Robert’s Dream’.


'Rose Marie'

M. 'Pink Surprise' × M. 'Daybreak'

RHS Hardiness Rating: H6

USDA Hardiness Zone: 5-9

Flowers precocious, over a long, late season (late April to May), cup-and-saucer-shaped; tepals 9, rose pink outside, paler inside. A fast-growing pyramidal small tree selected before 2005 by Dennis Ledvina, WI. This complex hybrid has MM. acuminata, campbellii, denudata, liliiflora and sprengeri var. diva in its genetic heritage.


'Rosea'

See Magnolia stellata ‘Rosea’.


'Roseanne'

M. liliifora 'O'Neill' × M. kobus 'Norman Gould'

RHS Hardiness Rating: H6

USDA Hardiness Zone: 4-8

Flowers precocious, tulip-shaped; tepals 6–7, broad and tending to remain upright, rich lavender-pink outside, lighter pink inside; leaves somewhat glossy, with a rugose texture. A medium to large shrub raised by Dennis Ledvina, WI, before 2005; a very hardy fertile tetraploid (Ledvina 2005).


'Rouged Alabaster'

(M. × veitchii) × (M. × soulangeana 'Lennei Alba')

RHS Hardiness Rating: H5

USDA Hardiness Zone: 7-9

Flowers precocious and early, opening to 30 cm across from buds with dark perules; tepals 9, rose-pink outside, white inside. A large shrub or small tree, one of the original Gresham hybrids named in 1962. Nowadays most likely to be seen as older specimens, although still in the New Zealand nursery trade (Magnolia Grove 2022).


'Royal Crown'

M. liliiflora × (M. × veitchii)

RHS Hardiness Rating: H5

USDA Hardiness Zone: 7-9

Flowers precocious, purplish-pink outside (dark when in bud), whitish inside; tepals 12, 12–15 cm long, often with incurved margins and spreading to different extents to give the vague impression of a crown. A vigorous small tree which often reflowers in autumn; one of the original Gresham hybrids named in 1962 (Edwards & Marshall 2019).


'Royal Flush'

(M. × veitchii) × (M. × soulangeana 'Lennei Alba')

RHS Hardiness Rating: H5

USDA Hardiness Zone: 7-9

Flowers precocious, goblet-shaped, white, with a small, very dark purple flush at the base of the tepals inside. A small tree, one of the original Gresham hybrids, nowadays most likely to be seen as older specimens


'Royal Star'

See Magnolia stellata ‘Royal Star’.


'Rubra'

See Magnolia stellata ‘Rubra’.


'Ruff'

See Magnolia grandiflora ‘Ruff’.


'Russet'

See Magnolia grandiflora ‘Russet’.


'Rustica Rubra'

See Magnolia × soulangeana ‘Rustica Rubra’.


'Ruth'

M. campbellii 'Lanarth' × M. liliiflora 'Nigra'

RHS Hardiness Rating: H5

USDA Hardiness Zone: 7-9

Flowers precocious (April in S England), large, cup-and-saucer-shaped, rich rosy purple. An upright small tree, a good later flowering alternative to ‘Lanarth’; flowers from a young age. Raised before 2000 by Ian Baldick, New Zealand (World of Magnolias 2022).

See also Magnolia × loebneri ‘Ruth’; issues around the valid name of that cultivar are not yet resolved (Lobdell 2021).