A Goldendoodle or any other dog only needs to be bathed once every 3 months unless the dog gets dirty or smelly and needs a bath sooner.
You can bathe the Goldendoodle dog once or twice per month if you want too to keep them smelling fresh and keep their coat shiny.
Bathing the Goldendoodle dog more than twice per month can dry out the dogs skin so only bathe them as necessary and no more than twice per month.