20-30 minutes. Dress in layers. It's quite hot in there, but cooler inside everywhere else and the garden outside is also beautiful.
You can spend as much time as you want in the butterfly garden, though I spent only 20 minutes or so.
30 minutes
Maybe 20 mins
It's pretty hot in the gardens, so we spent about an hour the first time and had to go cool off, then went back for another half hour
Thanks! Your answer is awaiting moderation.