Answer: Cats are creatures of habit so if you can consistently scare them away with sprinklers or noise makers, or if you place a barrier between them and the soil, they will eventually move on to less stressful places. It's easiest to place barriers in the spring, before you sow or plant, but you can still do it if your flower bed already has plants growing in it. The least expensive way is to "plant" plastic forks with the tines facing up in your garden. Cats are cautious around them because they're afraid they'll get poked. Or, you can lay chicken wire over the surface of your bed. Cats can't dig through the wire. Or, pound a series of wooden stakes on the perimeter of your flower bed and then string fishing line from stake to stake in a criss-cross fashion. Cats won't want to step through the line.
Hope these suggestions works for you!
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