I grow this one in much the same conditions as I grow most of my Coelogynes and Stanhopeas:  intermediate, with moderate light, and don’t let it go dry for too long.  Indeed, it is related to Stanhopeas and Gongoras.  This particular Sievekingia smells to me rather minty, with a hint of menthol.  While pleasant, it’s not exactly a floral scent.  The plant is medium sized, in a 5″ pot.