However, when the weather is favorable, the blossoms are first rate. Plant star magnolia in full sun in a well-drained soil. These shrubs are durable and require minimal care if placed and planted properly. Since these shrubs bloom on the previous season's wood, they should be pruned immediately after flowering. Late winter or early spring pruning will reduce flower numbers in spring.
Fertilization is unnecessary for many of the spring flowering shrubs.
In fact, if they are fertilized too heavily they may not flower well at all.