Plant eating cat problem.

Plant eating cat problem.

I have 2 plants. Both are not poisonous to my cats. I looked into it to make sure that if the cats chew on them they would be ok. Well my problem isn't the plants hurting the cats. My cats are hurting my plants. Does anyone know of something I could put on the plants that will keep the cats from eating them but not hurt the plant? Preferably something cheap that I can pick up from Walmart or Petsmart. Thanks in advance.
My gardens before…

My gardens before…

My garden part 1

My garden part 1

my houseplants : )

my houseplants : )

Amaryllis cultivar ID?

Amaryllis cultivar ID?

reach for the sky!

reach for the sky!

Plant ID help!

Plant ID help!