Cats like plants. They love plants. They dream and purr and rub and roll in plants. This is our cat Sprite making a cozy little nest in the pot of penstemon. Once the catnip was gone, he had to find a substitute. A worthy sacrifice. Which plants do your cats like?
Rainyleaf 
I plant catnip all around the garden just for my cats. They love it. Love your photos. Sprite is so adorable.
My cats like to eat many of the ornamental grasses. They don’t eat them down like a rabbit would but they “trim” them especially in spring. It is sorta strange but I’ve seen other cats do it too. Must be their form of fresh greens?