My mom has 2 yorkies that have hair that basically looks like a puppy cut all the time. They are 8 yrs old now and full blooded sisters from the same litter. They have stayed jet black on their backs and red, red on the face, it's just that their hair never grew really long. Really, mom would tell you that she's just as happy with them with their hair short as if it had've grown out long...especially since she puppy cuts her dogs anyway.