wilsonii (Magnolia wilsonii) Posted on December 11, 2013 by Lucile Whitman In my field Magnolia wilsonii is an 8′ round-headed tree. The leaves are dark green and leathery and the wonderfully fragrant flowers hang down. A perfect tree for a NW small garden. Size: 1 gallon Price: $30.00 Size: Field grown Price: $115.00