Home Depot, Lowes, Walmart etc have hooks that go in the ceiling. That's what I use and they work just fine. They have some that can hold up to 50 lbs.

Unless you know you're screwing the hook into a ceiling beam (truss? stud?) I would definitely go with the ceiling hook and anchor. 20 lbs sounds very heavy for a plant in a plastic pot, but then again, the plant looks enormous. I must be going to all the wrong garage sales. Good luck!

Epies can be pretty heavy. I would put it on a tall pedestal. I would be afraid that my ceiling would not be strong enough to hold all that weight after it's been watered. Which reminds me I need to buy larger pots for my epies.

If hanging from the ceiling the hook (a strong one) must screw into the ceiling joists....if hanging from a hook in the wall the hook must screw into a stud.

I used 2 ~ 6" iron hooks & a pretty thick wooden pole to carry the weight.