According to Kew Gardens, it is from Central America and probably Cuba and Florida.   After going through the photos and labels for specimens in the S , Tolerance, Unknown Some tolerance to salty wind but not direct salt spray. , Considertions, Noted for being weedy. , Habitat, Disturbed. Old orange groves, pasture, roadsides. May occur naturally along the west FL coast including shell mounds and dunes . All records for in , Did You Know?, Showy flowers

In nature, this grows in habitats with frequent fire.  In the garden, it will grow best if you remove built-up thatch (or burn it once every few years , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Habitat, Flatwoods, sandhills. , Did You Know?, Showy flowers, Showy fruits, Interesting foliage

Groundcover recommended for natural landscapes and habitat restoration. , Tolerance, Tolerant of occasional/brief inundation such as can occur in storm surges. Some tolerance to salty wind but not direct salt spray. , Wildlife, Cover for many ground-dwelling species. , Habitat, Hydric and mesic hammocks, shallow swamps and swamp edges, floodplains, limerock, concrete, ditches. , Did You Know?, Interesting foliage

Mass plantings, small specimen shrubs , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Wildlife, Foliage and seeds are food sources for birds and mammals. , Habitat, Hammock,mesic to dry mesic hardwood or mixed pine forest, flatwoods, floodplains, ruderal areas, sandhill, wet calcareous hammocks, secondary woods. , Did You Know?, Interesting bark, Showy flowers, Interesting foliage Attracts insect pollinators, especially bees.

Wildflower garden. This is a small but pretty little plant. Grow it in a moist wildflower garden. , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Considertions, It may be necessary to re-seed to keep this in the garden. Seed is not generally commercially available. This is the most toxic of the milkweeds and i , Habitat, Flatwoods , Did You Know?, Showy flowers Larval host for the monarch butterfly (Danaus plexippus). Attracts various pollinators.