They like woodland environment but need a good dose of sun to get them going and a bit of protection against the winds. Also maybe need even moisture due to their giant leaves losing lots of water vapors.
Boys, I looked on other similiar magnolias...it could also be white bark magnolia? I planted it under a canope of other big oaks. It's has been there over a year, and the leave just re-emerged for the growing season. So far it's looking pretty healthy.