David, with my first clivia last Dec 2014, I just brought them indoors after its one month cold stay outdoors in a protected area. Then watered it. Then it happily made a bloom stalk in mid January last year. And you would have already read my clivia growing observations in another thread, I just grow them in a container too.
I have seen clivia's in San Francisco, and they are grown in ground but very shaded by the huge trees above them. San Franscisco weather is colder and they get more rain than we do in winter. But rain here in Cali is really sporadic, except this winter, due to El NIno. Anyways, just observing how much cold these plants enjoy.
I am waiting for my clivia's this year to show me if I did right or wrong, one keeping it indoors but kept dry during late Fall to December..and another one kept in our cold garage, no lights, kept dry all December, and now back by the bay window side. I just watered them yesterday for the first time..so keeping fingers crossed, like you. I am really impressed with this plant..how drought tolerant it is really.