I've had it on a swan plant inside the caterpillar castle, outside on our deck, however our weather has gone from cold to colder so yesterday I brought it inside the house.
Our little house is only heated by a small heater (we don't have central heating) however the change in temperature does seem to have made a difference.
Last night while we watched TV we noticed the caterpillar was moving around the plant and, this morning, just look at the photo to see how much it has eaten of the leaf it is on.
Oh, almost forgot. Tiny caterpillar, who hatched yesterday, has gone walkabout on the swan plant and I can't find it (it's a very tiny caterpillar). Hopefully, when it has grown a bit, I'll find it.
It's quite nice just having just these few caterpillars to watch over, rather than the dozens we had in Summer. So far the other eggs we have are not changing colour, but we're ever hopeful.