What is the approximate duration of adolescent growth spurt?

The adolescent growth spurt typically begins around the age of 10 or 11 in girls and 12 or 13 in boys, and continues for about 2 to 3 years. Girls usually reach their peak height around the age of 16, while boys typically reach their peak height around the age of 18. However, some individuals may continue to grow until they reach their early twenties.