Magnolias ( Magnolia spp . ) are wide admire as flowering shade tree . Some magnolia metal money are deciduous and lose their leave . Others are evergreen and do not . Another magnolia preeminence is that some metal money have all-encompassing , saucer - work blossoms while others have bloom in the form of a star . There are both aboriginal magnolias and species that originated in Asia .
Deciduous Magnolias by the Numbers
There about 120 species of magnolias worldwide , with eight in North America , of which six are deciduous . Deciduous magnolia are the most stale hardy . Evergreens typically involve warmer climates . New intercrossed magnolia cultivars appear every year . Cultivars in the form of bush render the showy , fragrant blossom for which magnolia trees are famous .
Deciduous Magnolia Species
discus magnolia ( Magnolia x soulangeana ) is famous for its dish antenna - shaped , 3- to 6 - column inch - wide , pink to empurpled flowers . Some cultivars are shrubs while the tree spring up from 40 to 70 invertebrate foot tall in U.S. Department of Agriculture plant hardiness zones 4 through 9 . A native of North America , bigleaf magnolia ( Magnolia macrophylla ) is note for its oblong leaves that grow to 30 inches long . It grow from 30 to 40 feet tall grant 8- to 10 - column inch - wide white blossom that have go up - purple bases . Bigleaf magnolias grow in USDA geographical zone 5a through 9b . Sprenger magnolia ( Magnolia sprengeri ) acquire up to 40 feet marvelous and 30 feet wide-eyed with a blue , propagate canopy . It yields showy pinkish or whitened blossom in spring , and its leaves are bronze or gold when they drop in the drop . Sprenger magnolia will develop in USDA zones 7 through 10 . Native to Asia , maven magnolia ( Magnolia stellata ) grow 15 to 20 human foot tall , yielding star - shape livid blossom in late winter to early spring . It is sometimes grown as a rounded or oval bush . genius magnolias will grow in USDA zones 4 through 8 .
Evergreen Magnolia Species
Perhaps the most well make love magnolia , the southerly magnolia ( Magnolia grandifolia ) , famous for its great , showy white blossoms , develop from 60 to 80 foot marvellous with a scatter of 30 to 50 feet . Southern magnolias will grow in USDA zones 7 through 9 . Noted for its exceedingly fragrant yellow to yellow orangeness flowers , Champaca magnolia ( Magnolia champaca ) is a slow - growing evergreen native to tropical and subtropical Asia . It grows from 25 to 30 feet in high spirits in USDA zona 10a through 11 .
Cold Hardy and Variable Growth Magnolias
Cucumber magnolia ( Magnolia acuminate ) , a deciduous aboriginal tree , is especially cold hardy , growing in USDA zones 2a through 8a , although it does not endure urban pollutants . It grows from 40 to 70 feet marvellous , yielding yellowish - K , tulip - shaped flowers . Its leaf sour gold when they drop in fall . While the aboriginal sweet bay magnolia ( Magnolia virginiana ) will get in USDA zone 5 through 10 , it is deciduous in the colder part of that range and evergreen at the warmer end . It is grown as a shrub or as a tree from 15 to 20 feet improbable in cold parts of its range and up to 60 foot improbable in the southerly , warm part .
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