N. wettsteinii is most often grown as a basket plant. Its bushy habit with small shiny leaves and bright orange pouched flowers makes it a very decorative and relatively easy-to-grow specimen. It is sometimes available at generic commercial nurseries.
This specimen has been grown as a standard, and was exhibited as a “bonsai” version of the plant. Note how the stems have been intertwined and supported by a small stake. A photo of a show plant may be seen here.