Answer: Try covering the soil with a thick mulch - the larger the particle size, the better. Or, lay crumpled chicken wire over the spaces in the bed where there are no plants. Finally - try putting stakes around the perimeter of the bed and stringing nylon fishing line in a criss-cross fashion, keeping the line only 6 inches above the top of the soil and making sure the lines cross every 10-12 inches. Cats will get spooked if they think the fishing line will trap them.
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