How long does it take for a rib cartilage harvest scar from Rhinoplasty to fade?

I had a revision rhinoplasty with my own rib cartilage a month ago. My scar is about 3 inches long and very dark red but the skin is all healed over. Will the color of the scar fade over time? How long will it take to see improvement? Is it normal to have such a large scar following revision rhino with rib? I thought most doctors make a smaller incision.