My boy is a Netherland Dwarf! Good to know.It depends on the breed and line of the rabbit. Some breeds have a longer show life than others (and some start later than others as well). Netherland dwarfs often take a couple years for their heads to fully mature so older rabbits can still be competitive sometimes (although if they get too old, they start to lose condition & fullness of hindquarters). I wouldn't be surprised if some netherlands were four or five and still winning their classes at local shows.