How long can you stay in the butterfly room, 30 or 45 minutes? I have seen both on web sites. When you move to the conservatory after the butterfly room is there a limited time you can stay there?

45 minutes

Last year it was 30min. I suspect this year will be the same. Once you're in the main conservatory you can stay as long as you want

About 30 to 40 minutes. And it's worth every dollar.

You will have a timed ticket. You can get into the Butterfly room at or after that time and stay until the next hour starts. So, it depends what time you get in. But if you want to see the Palm room and Fern room you need to see them before the Butterflies because you will exit a different way and you cannot get back into that part of the conservatory again.

It's supposed to be 30 minutes, but nobody actually times it

Nobody is timing you once you get in.