If you are in SoCal....chances are you can grow this plant outdoors.
I read about a member from San Diego who asked for a cutting of this plant from a neighbor's hedge two houses away from them....
This is usually just planted in the soil....there is rarely frost in the area so it survives.
But I am in Manhattan so I cant have this outdoors; it will be frozen with our blizzards and snowstorms= my Dendrobium radicans is in a pot just like your picture placed on the south facing windowsill.