if you have grown them in pots put in shed away from frost do not dig up as you will end up splitting the bulb and having to wait for a good show . bring back out when frost is gone,if you should get some of the pollen on your clothes brush off dry as if you wet it ,it will stain and as said poison to cats.One of my big African lilies I just put a pot over the top to stop the frost getting to it,it seems to work.