The behavior is characterized by chewing with the molars. The material chewed is usually wool, but in the absence of wool the cat will generalize to other materials including upholstery. The behavior is sporadic, but large holes can be produced in a matter of minutes. Treating the wool object with cologne and a solution of hot pepper sauce will help teach the cat not to chew the item. The cat associates the smell of the cologne with the unpleasant taste and avoids objects that smell of the cologne.
Cats frequently eat grass.
Therefore, it is not surprising that cats may eat house plants. Plant eating can have serious consequences to the cat because many house plants are poisonous. The best solution is to provide green plants that are safe for cats to eat. Check local pet stores to purchase safe edible plants for your cat. The cat needs to learn to discriminate edible from nonedible plants.