How often should cocker spaniels have their hair cut?

http://www.petgroomer.com/Grooming101/Breeds/english_cocker_spaniel.htm has full instructions! you would have to first bath it then dry it then you have to brush it then get dog clippers and the...

To maintain a hairstyle, one's hair should be cut every six to eight weeks. To "grow out" hair, extend the trim to three month. Hair is not "alive" except at the root. This is the reason that one...

every 4-8 weeks

4 to 6 weeks for long hair to keep it healthy. I have very short hair so i only need to have it cut about 8 weeks to keep it in style