This is one of the more adventurous guests in my caterpillar farm. We have hung all the leaves up now they are getting bigger and they are coming on really well. Have no clue how big or old they get before they change so just keeping an eye and changing their leaves. Jack especially is fascinated by them and sits with me whilst we look at them or change the bottom leaves. He is a bit too keen sometimes though and I have to remind him how delicate they are.