Information on salt tolerance comes from northern nurseries and likely relates to tolerance of salt used for de-icing or roadways.  The extent to which it would apply to Florida is unknown. Good hedge plant. Rose garden. Rear of a wildflower garden.

Predominantly a Florida plant, but it has also been recorded in Georgia, South Carolina, North Carolina, and Texas. The species name "tomentosa" refers to the dense, matted (tomentose) hairs on the leaves. Aphids are often a "problem" with milkweed plants -- they are a natural preditor on Asclepias, but we don't like them. Wildflower garden, dry wildflower meadow

If a single plant of similar stature and flowers is desired, consider flatwoods plum, Prunus umbellatus. Based on BONAP and ISB maps, the range of this species covers much of the southern and south central US with some outliers to the north and west. In Florida, it has been documented in many counties in the northern half of the state, and this author is aware of it being in others.  It appears to be appropriate to consider this species native throughout this part of the state. Plant as a screen where its suckers are welcome (woodland edges, casual but large garden settings)

Foliage has a strong minty smell. Dry wildflower garden.