You cannot train cats to use specific areas but they will use litter boxes. Any bare soil is idea for a cat toilet, according to the cat, so protect these areas with small canes pushed into the soil at angles so the cat cannot settle on the garden. Another answer is to fill the garden so full of plants there is nowhere for the cat to go. As a treat plant catmint as your favorite kitty will love to roll around in it. One of the most asked questions that I get from my readers, is how to keep
wildlife away from bulbs. Keeping wildlife away from bulbs is a challenge for anyone. Deer, rabbit, chipmunks, and squirrels will dig up bulbs for a tasty meal. Of course, an occasional skunk or raccoon may also
dig up your bulbs. Keeping wildlife away from bulbs can be tricky, but there are several natural ways it can be done. I always try to do things naturally so that I don't harm the environment. I find the most difficult wildlife to keep away from bulbs is chipmunks and squirrels.