You should always prime bare drywall with a PVD primer. And NEVER texture a wall. Smooth walls and ceilings only.

Thank you. I don't understand your comment about NEVER texture a wall.if I don't texture it, it won't match the rest of the wall!!

It's extremely difficult to match texture. You probably need to have the whole wall professionally done.

You don't need primer.

I will suggest that wall needs a bit more work prior to texture.

Did you tape all the joints?

texture spray first. you will have to feather it out to blend into surrounding area. after it dries, prime all of the new texture before painting.

were those joints taped first?? can't see any tape.

make sure it's completely level w/the adjoining wall space. it looks as though it may be a bit concave. if you have to build it up, apply some leveling compound and sand until it's smooth and even with the bordering areas.

Sophie, most homes in Calif and elsewhere, ALL texture their walls. you'd be hard pressed to find a home without it. yes it's preferable but it ain't happening