They are naturally small breeds of dogs, and some could think that they are undergrown. However, a usually Cavapoo does not grow beyond fifteen inches.
Cavapoos are typically breeds of dogs that are categorized as small. Considering this, they get fully grown by the period they are on their first birthday.
During this phase, your Cavapoos tend to experience drastic changes. They stop depending entirely on their mothers since they start hearing and seeing.