Thanks for the nice comments folks. I grow this one just like any of the other tropical Habenaria sp. from SE Asia - in a nice humus mixed with sand. They want perpetual moisture, but must remain well drained. Smaller pots seem better than larger as well, so undersize the pot you use. During growth they need consistent warmth, at least above 25 C on average. If they stay too cool they can stall - maybe that's what happened to yours Jorch. Once they die down for the winter hold back virtually all watering until the next spring (April-May). Once they start growth keep them moist. Really, they are the prefect companion to Paphs, so they should be a breeze for you all!
Zach, Habenaria radiata (yes, the damn taxonomists are up to it again, this species is "back in" Habenaria rather than Pecteilis) is a true temperate bog species, very unlike this one. I do feel that H. radiata is a bit touchy, but not too bad once you figure out its needs.