Cut any branches competing with the central trunk if your magnolia is young and you want a plant with free space near the ground instead of a bushy appearance. Use gardening shears to snip off the competing branches. Begin regular trimming of magnolia branches after the spring flowering but before midsummer to avoid interfering with next year's blossoming. Choose branches that stick out farthest from the tree.
Use gardening shears to cut slightly below the bud of the flower to remove it.
Examine your pruned magnolias for water sprouts, which are thin sprouts with a strong vertical growth path. Cut off all water sprouts to preserve the magnolia's appearance.