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Magnolia grandiflora. This scientific name for the southern magnolia gives simple guidance on what to look for in our Acadiana landscapes this time of year: big flowers! In addition to keeping your eyes as wide as the eight-plus inches of the flower, keep your nose alert for the fragrant scent.
Perhaps you wish to look no further than your own landscape. The ideal period to plant is November to March while they are dormant and the weather is cool. Be sure to plant at an appropriate depth in a well-drained area, with the root ball at or slightly above the surrounding soil. The southern magnolia can grow to 75 feet or more in height and up to 30 feet in width. This size, along with the large surface roots, should be considered in site selection, desirable to be away from concrete surfaces.
Growing at a moderate rate, the initial pyramidal shape develops a broader canopy with a rounder top. As it matures, the often desirable shade it provides could impact grass growth in its vicinity. You may place four to six inches of mulch in such affected areas. Consider breaking up the deep green leaves that drop in spring and summer to contribute to the mulch. Breaking them up is recommended, as they are large, waxy, and would otherwise decompose slowly.
Should the magnificent magnolia grandiflora be too grandi, the Little Gem cultivar may be suitable. This dwarf tree is a cultivated variety with a similar appearance, yet smaller.It reaches up to 25 feet in height and up to 10 feet in width. While smaller in stature, the Little Gem flowers are only slightly smaller, around six inches. It maintains a columnar shape.
Evoking images of its namesake, the Teddy Bear cultivar of the southern magnolia is smaller still, reaching up to only 20 feet in height.
The species of magnolias number more than countries in the world. Extending beyond the southern magnolia, options for your landscape are abundant. Consider tree size and shape, as well as flowering color and season. Also consider flower size! If not for your own landscape, for those around you in South Louisiana, displaying the big flowers of the magnolia grandiflora.Article for publication April 14, 2023
