Hair grows about one half inch per month, so growing it back from a short haircut can take months or years. There is little that a person can do to make hair grow faster, but eating a healthy diet and avoiding too much styling can make the existing hair healthier.
There are several natural ways a person can promote faster hair growth. These include scalp massage to stimulate the blood vessels that feed hair follicles and regularly trimming split ends to promote overall good health for hair. However, any change in the rate of hair growth caused by these methods is relatively small.