Go with river rock, it lasts longer (duh, it's a rock), pine bark will turn grey after about a year and not be as attractive, cedar bark is more expensive, any mulch you put down will need to be added to every two years and no mulch will last more than three years. Regardless of what you put down make sure that the highest quality landscape fabric is put down first otherwise weeds and grass will grow through it and you will constantly be spraying weed and grass killer to get rid of it. I know river rock is much more expensive but it will only need to be done once. And one more think about cedar mulch, it floats so it will move around in heavy rains. You will need a barrier regardless of what you choose.
|