Ten years ago most of us gardeners couldn't tell an Asian invasive from a native beneficial. Today, most gardeners are at least aware of the problems non-native plants can cause, in particular, choking out the ability of native plants to thrive and support local wildlife.
The University of Mississippi Landscape Services has posted a guide to commercially available native plants for that state.
MS growing zones range from 7a in the north (just south of Memphis TN) to 8b on the gulf coast.in Biloxi and Gulfport. Here's a map.
With all that said, the current changes in climate worldwide also have to advise our plant selections.
Here's a list of MS native plants - follow this link for full details.