Does hairline transplanted hair grow slower then the rest after ht?

         
You are entering the 4th
month post transplant and will see the onset of hair growth first as thin, fine
hair.  Over the next few months hair will
become thicker and more coarse.  Not all
hair will enter this growth phase at the exact same time.  By the 12th month you will
essentially see the final result.

  
 

It takes longer than 3 months for the hair growth to show. More likely 6 months, when you should be able to see some fullness in the area.