Mint, a woman I used to work with swore that mothballs kept cats out of the garden, but I have never tried it.
The only thing I've found that works for keeping
out of my garden is to
not give them room to squat. My cats will leave plants alone, but try to use the ground in between.
I stick things in the ground so they don't have room. I use solar lights and garden stakes (the metal flowers and birds and butterflies...) in my flower bed. I use small sticks shoved into the ground in the vegetable garden. So they go in the grass, and since I'm not the one that mows...
I love that! If I ever get another dog, I will try to train it to keep my cats out of the garden!
I heard about them avoiding citrus, too. I tried it out on my own cats, peeled an orange and let them smell the peel. They gave me a weird look,
"Why are you offering me a
NOT MEAT treat?!" That was about it.
bark mulch won't actually deter cats but it will stop them from using vegetable beds as litter boxes for sure.
This I did not know!!
I've used grass clippings, leaves, and straw as mulch, and they just dig it aside. Bark mulch, ok!!