how long does it takes to grow hair?

As a hairdresser, I can tell you for a healthy person ,not having a party lifestyle it will grow a quarter of an inch a mo. If you do drugs and or lots of drinking your body is not as healthy , and your hair suffers too.....sometimes it stops growing with "Speed" users . Alcohol drys the hair out really bad which causes it to spit on the ends easier .Take vitamins fish oils etc. and live a healthy life style and it will grow like it supposed to .

On an average, hair grows at the rate of 6 inches annually. The secret formula for hair growth is to see that hair remains healthy. Try http://solutionsforhairgrowth.blogspot.com/ for more details.

Each person's hair grows in different times. Usually not too long.

as long as it takes hair to grow

Hair on your head grows about 6 inches a year on average. It can be faster or slower. It is determined by genetics so every one is different.

In one year after shaving it at 1/2 inch cut my hair will be past my shoulders. Mine grows quick.

Varies depending on the kind of hair and the person growing it. And how much you're talking about.

ive heard that an average person grows about an inch of hair every month, but it differs

A long time it depends how long u want to grow it though

it grows 1 inch in two months