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State Protected and Federally Protected Trees. Before you cut down a magnolia tree, determine whether it is native to the United States and whether it is protected.Trees can be protected at both the state and federal level. Federally protected trees such as Ashe's Magnolia (Magnolia ashei) are considered rare in all parts of their native range.It is illegal to cut down these trees. Other trees such as the cucumber magnolia are not federally protected because they are abundant in most parts of their native range.However, the cucumber magnolia is protected in Indiana because it is rare in its native range there.rees can be protected at both the state and federal level. Federally protected trees such as Ashe's Magnolia (Magnolia ashei) are considered rare in all parts of their native range. It is illegal to cut down these trees.
Once temperatures warm, clear away dead leaves and flower blooms to examine stems and branches for deeper damage like frost cracks. Prune away any damaged or dead wood. Apply a light fertilizer and mulch, which will help the tree recover and prevent frost from reaching the magnolia's roots in the future.old-Hardy Varieties. The best way to avoid or minimize cold temperature damage to magnolia trees is to plant cold-hardy varieties. For example, Star magnolia is well known for its resistance to winter cold and grows well in USDA zones 4 through 8.