Is it possible to get hair growth on the cut where i got stitches? (photo)

Hairs will not grow on the scar.Two options: 1) Hair transplant surgery to add hair to the scar2) Scalp MicroPigmentation (SMP) to hide the scar 

Cuts and lacerations on the hair bearing scalp runs the risk of loss of hair in that particular area. In your case the wound has already been stitched so the best possible way to deal with it is to allow the wound to heal completely first and then let the ensuing scar settle down. You may even try treatments for scar reduction in the form of massages using silicone based creams. Once the scar has softened and has been allowed to mature for about 3-6 months, hair transplantation can be done to cover it. Hair growth in the transplanted region is suboptimal owing to the nature of the scar bed sometimes a repeat hair transplantation to add density to the area may be required. Trichophytic closure of skin lacerations or surgical wounds of the scalp allows hair to grow through the scar and eventually hiding the scar. This technique is only possible in  fresh wounds and can also be done during scar revision surgeries..

The scar which has resulted from stiches won’t have hair that is true. To hide or reduce the appearance of the scar one may go for hair transplant in the scar area using FUE or one may conceal it using scalp micro pigmentation. If one doesn’t want to do anything then camouflaging agents can be used on the scar.

Growing hair back to cover up stitches might vary as it all depends on the formation of the scar or may not be guaranteed. Most times the hair won’t grow back to cover up the stitches in which case, the Individual might decide to do a surgery called scalp micro-pigmentation to cover up the scar. Whichever way, hair can cover the scar in the end whether hair transplant or scalp covering. A surgery can definitely cover up the scar.

Hair won't grow back where the stitches were placed -  that is correctthere are a few options to camouflage or reduce the appearance of the scar1. You can get hairs transplanted into the scar. It may take a few sessions but that is a good option. Hairs that are transplanted into a scar don't grow quite as well as when transplanted into an area without scarring2. You might also consider scalp micropigmentation. (SMP).  Essentially the scar can be tattooed to make it look like you have hair. 

Once this heals, if there is a scar and missing hair you can get either a very small transplant into the scar or minimal scalp micropigmentation which works nicely and is not surgical. See web reference bloew

I use the trichophytic closure and the hair grows through the  edge of the wound and therefore gives the appearance of growth in the stitch area.