It is listed as endangered by the state of Florida and as critically imperiled in South Florida by The Institute for Regional Conservation. Specimen shrub. Foliage is shiny, attractive. Grown mostly for its interesting, translucent fruits.

The genus name honors the English botanist William Vernon, who did fieldwork in North America. Back of a moist wildflower garden. Can also use on the edges of natural or created wetlands and streams.

Useful in coastal restoration or retained along a coastal shoreline for stabilization. Salt marsh coastal stabilizer. Low dune stabilizer. Groundcover in coastal settings.

Shady settings. Interesting for its green twigs and red warty fruits. In good habitats it can form dense clones.

The name 'passion' is a reference to the crucifixion of Jesus of Nazareth. Parts of the flower are said to resemble instruments used during the crucifixion. Given the proper support this plant makes an excellent climbing vine hedge.

Foliage has a strong minty smell. Dry wildflower garden.

Grow on a trellis, but keep it fairly short to keep the flowers at a level where they will be enjoyed. Can be grown as a container plant.

Moist wildflower garden.

This species is more common in adjacent states and occurs broadly in mid-western prairies.  Its range barely makes it into Florida.   The southern end of the range is likely determined by lack of winter cold.  The seeds germinate better with winter stratification. Delphinium caroliniana is listed as state Endangered in Florida.  It is not commercially available in Florida.  It might best be purchased from Alabama or Georgia seed sources. Wildflower gardens.

Used as a foundation or hedge plant. Large shrub to small tree. Can also be used as a specimen plant.

Is being replaced  by S. lancifolia in Louisiana where there is salt water intrusion into wetlands.  Apparently much less salt tolerant that S. lancifolia. Use in water gardens or as an emergent along pond edges.

Range includes areas usually relatively near the coast in Southeastern United States west to Texas, north to North Carolina, and south to the Monroe County Keys; and Mexico,  the Neotropics and Bermuda. Rare in the northern parts of its range and in the Florida keys. Naturalistic areas especially near the coast.