A Cockers hair can grow pretty rapidly. A Cocker will probably need a quarterly trim. Monthly trims would probably be best. Their fur coat grows so quickly that if you don't do it often the beautiful cocker coat will quickly become a matted mess. If you don't think you can keep up with the frequent trims that this breed requires you should get a different short haired breed of dog. Also the Cocker coat is a lot easier to maintain if it is brushed daily. You will also want to make sure you wipe underneath the eyes often because they tend to tear up.