Desert Rose (Adenium Somalense) 100 Seeds Adenium Somalense is a perennial found in Somalia, Kenya and Tanzania. It is a multi-trunk shrub or small tree growing about half as wide as it does high. It will grow from 5 to 8 feet in the wild. The trunk form, foliage, and flowers are all very attractive. Each desert rose creates its own sculptural design. The base is large (obesum) and in various shapes.