Answered by Shaykh Amjad Rasheed
Is it permissible for a man to grow out his hair as long as he likes or is there a legal limit?
There is no legal limit for a man or woman to growing out their hair, but what is important, is that a man be cautious when he grow out his hair that he not intend to imitate women, nor the people of sin and shamelessness. If he intends this, it is haram.