Lexie is gorgeous! Sully is a year-and-five-months and his hair is about that length, too. I think it's different for every dog? We're growing Sully's hair out, too and it seems to be taking forever! LOL. I know, patience, patience...
PS. I used to live in Chattanooga...when I was a kid. I went to Westview Elementary (but that school doesn't exist anymore). I also went to kindergarten at Grace Academy.