If you are a natural red head and your grey is becoming more obvious. I would recommend visiting a professional salon and introducing some High light tones to give your hair a Strawberry blonde colour as you suggested. ...More >
This would definitely help reduce the appearance of the root area coming through as your hair grows and give you a much softer look.
As you loose your natural pigment, your tone and its vibrancy fades. Ask your stylist about the use of colour shampoos in between visits to keep replenishing that Gorgeous red head look.