DearCustomer Thankyou for your question today.
Right now you are experiencing this behavior because he can do this ,they are reachable for him. It's not healthy for him or the plants.
Your dog is throwing up these because at least the Christmas Cactus is poisonous.
It would be really wise to move it out of the way where the dog cannot access it.(perhaps hang it?)
The Fiscus may not digest well for him either.Consider moving that where he cannot access it while you're gone.
Then you will have no more throw up ,the dog is safe and everyone is happy..
If you've found this helpful please click accept and leave a positive feedback as I will for you also.
Have a nice weekend.