How old usually before a black pug starts growing gray hair?

QUESTION: How old usually before a black pug starts growing gray hair?  My pug Hercules is almost 9 months he has like 3 random gray/white hairs around his body.  I’ve seen pictures of older black pugs completely white.  I was wondering around what age they start to significantly grow gray/white hair.  Thanks

ANSWER: Rrandom white hairs?!  my goodness.  you really pay attention to details!  but you shouldnt worry about it.  it should start getting really grey/white around age 8 or 9 or 10. human years  hope that helps!