Iweberg,

Google "Organic Soil Chicago"; 1.4 million hits. Others may have suggestions on what to look out for...

Blutranes

Could you define what you mean by "organic soil"?

Taken literally there is no such thing. All soil is organic but may contain some elements you might consider undesirable. Do you mean compost perhaps or a soil-less mix of some kind? Or are you looking for soil that has already been certified as "organic" as in approved for use by certified organic growers (if there is such a thing)?

Dave

You do not want something called "Organic soil" since you already have lots of that. What you do need is organic matter, things such as compost, leaf mold, shredded leaves, any vegetative waste except probably Poison Ivy, Oak, or Sumac. Anything you buy that contains "soil" will be 95 percent of what you already have, the mineral portion of soil, and about 5 percent of what you need, organic matter.