I am putting in a raised bed this year and was wondering what soil mixture I should use. I found a old thread that recommeded equal parts by volume of compost, peat moss and vermiculite. I don't have any compost and unless I can buy it a Lowe's or Walmart then it is out of the question. Would top soil work instead maybe with an addition of fertilizer? I am not in a position where I can till up my spot since we live in town and I am worried about hitting a gas line etc. My plan is to use concrete block as the frame, lay newspaper to keep out the weeds and then put the soil mix on top. Any suggestions?