(Garden origin) parents: N. Carolina to Texas
"Southern magnolia seeds are eaten by squirrels, opossum, quail, and the wild turkey.
Southern magnolia provides cover for many small birds and mammals.
The relatively heavy seeds are disseminated by birds and mammals, but some may be spread by heavy rains. Southern magnolia is pollinated by insects." 
"Southern magnolia is a valuable and extensively planted ornamental. Southern magnolia is a good urban landscape tree because it is resistant to acid deposition." 
"The leaves, fruit, bark, and wood yield a variety of extracts with potential applications as pharmaceuticals." 
 Coladonato, Milo. 1991. Magnolia grandiflora. In: Fire Effects Information System,. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: https://www.fs.fed.us/database/feis/plants/tree/maggra/all.html.