I have a window over my sink. It is like a bay window but smaller. I have my herb garden and the cat's garden. If I did not hane anything for them, they would eat my herbs.

there's another garden plant called catmint, that cats like a lot. AND it's perennial. it gets a nice purple flower and if the cats don't eat it all, you get butterflies. you can be a nice neighbor and offer bits to various neighbors as border plants. just dig up sections in the spring and share. share the cats as well.