Grows well well north of its native range.  Documented in very southern counties with an outlier in Martin County -- that outlier is also unique in that it was collected near a cypress dome. Closely related to corn, this species has been crossed with maize to produce a corn that is resistant to Helminthosporium turcicum, the fungus that causes northern leaf blight  (Wikipedia). Listed as Threatened in Florida. Informal borders.

The range of Prunus serotina includes most of eastern North America as far north as southern Canada.  It extends west into Texas and there are spotty occurrences as far west as Arizona.  In Florida, the range appears to be continuous as far south as the central peninsula after which it disappears, a pattern generally associated with temperature.  This species should grow well down to the central peninsula. Some people consider this to be a weed tree.  This author has it in my "field" where it is thriving and very welcome.  It is an early successional tree, but not a problem plant.  The tree lis an important component of deciduous forests in north Florida and eastern North America. Shade tree. Useful for informal reforestation of old grove land.

Informal shady semi-shady gardens.

Some literature sources suggest that this species may have some salt tolerance as it apparently grows along the upper edges of some salt marshes, but so far as we have seen recorded, not in Florida. Moist/wet wildflower garden.

In a managed garden, gamagrass can be trimmed back at the end of winter. Hedge, foundation planting, individual large grass clump, background screen for a flower garden. Rain garden or bioswale.