Cats are usually beneficial to a home garden; they help keep mice, rats, and other rodents under control, and they frighten away nuisance birds. But cats can be damaging in newly planted areas. They dig up soft, loose soil to bury their droppings and urine. They unearth seeds and transplants while digging and may continue to damage these areas until the soil becomes compacted or until plants fill in the area.
To prevent cats from disturbing you garden use Ortho® Dog & Cat B Gon® Dog & Cat Repellent according to label instructions. Additional options include: Protect seedbeds by laying chicken wire on the soil; remove the wire before the plants are too large to slip through the mesh. If plants are already present, set up cages made of 1-inch chicken wire over newly planted spots. You can take away protective devices after the soil packs down or when vegetation covers bare areas.