Maintain a mulch around them during the growing season. Water them during dry periods. Brace the trees until the root system has become well established. Protect the bark from mechanical injury. Varieties Magnolias commonly grown in the United States are of two kinds - native and Asian.
Native magnolias bloom from late spring to summer and have white, yellowish, or green flowers.
Asian magnolias bloom in early to late spring andhave white, pink, or reddish-purple to purple flowers. Some magnolias do not survive cold temperatures. When buying magnolias, therefore, be sure to select varieties adapted to your area. You can also ask neighbors which varieties have done well for them or you can ask your county agricultural agent to recommend species that are adapted to your area. If fat wooly buds are visible on the older trees, you can expect a few blooms the year you plant.