Jeff Layman writes

Stop watering now. Start watering mid-September (they will have
started drooping quite a bit by then, but will soon plump up when the
watering starts). Give weak fertiliser Oct-Nov-Dec. Light window -
south or west facing. Do not allow to get too cold (eg behind a
curtain) - remember that they are epiphytes from tropical forests.

See what I mean Sacha? Everything I do is the exact reverse of this! ;-)

--
Kay