The bigleaf magnolia is aptly named. It grows the largest flowers and simple leaves of any temperate tree in North America. It is native to woods and valleys in the southeastern United States. In spring, the tree grows large green leaves up to 30 inches long. The massive flowers—up to a foot in diameter—bloom in May, fragrant and white. They are succeeded by cone-like fruits that turn red in late summer. In fall, the leaves turn yellow before dropping.