You'll hear a lot of different things, but, my breeder and my vet have both told me 6 mos. My biewer hasn't grown at all since she was 6 mos(she's 7 mos today). Smaller dogs usually quit growing around 6 mos. although, some will get a little growth spurt, or they may fill out a tad bit more after that. My oldest biewer quit growing around 6-6 1/2 mos. my yorkie was not ordinary and kept growing and growing and growing..she loves her kibble |