I bought two baby 'Desert Rose' plants the other weekend at the same time, and when I got home I planted them right away like the lady said that I bought them from. And one of them is almost dead and the other one is doing very good! Desert Roses are very touchy!
The most commonly cultivated species known as Desert Rose is Adenium obesum http://plantsdatabase.com/go/527/. Hibiscus sturtii is an Australian species not common in cultivation and my photograph was of a wild plant in Flinders Ranges in South Australia.