Problem area is not only sandy but also pure sun. I don't think fescue will do well in that but I'll look into it (likely to brown and go dormant in the summer). I agree peat/compost is definitely the better option now but I've got about an acre of soil to improve so may try tackling a section at a time each year and see what works before repeating.Oversees with fine fescue, not Kentucky bluegrass grow. Apply a spread of annual ryegrass every spring and I’ll bet you’ll do ok.
Sandy soil is ok for grass, but you have to match fertilizing to the soil conditions and water more. Improving soil is best done by adding peat or compost, not topsoil.
