This thread was started 2 years ago so the post is most likely archived and not in the same place that Ray linked to way back when.
My experience with nobiles has been to stop fertilizing in August. Put the plant in a very cool, bright location, and water sparingly once a month. I don't have one in s/h, but I don't see any reason the above would not apply. Fill the reservoir with plain water once a month and call it good.