I cut zoe's hair down when she was 4 1/2 months. She basically looked like a schnauzer when I was done. The stickers were so bad in the yard this year, the shorter the better. I have pics of her on my site -
www.milestx.com and then go to puppy zoe. You can see her before the cut, after I groomed her, and then after I took her to the groomers to clean up her paws, nails, and head. (I couldn't get her to slow down for me to cut her face. I will be growing her hair longer. Now that the puppy hair is gone, it seems to not mat as bad.