This is by far the worst stuff I've ever used. Picked it up at Ace Hardware. I should have just taken soil out of the garden for my window boxes. This was a powdery substance that repelled water.
When I put it in a bucket and stirred it to work water into it, it took on the appearance of asphalt. What in the hoohah kind of "soil" is this anyway? I mixed it with everything I could find- last year's potted soil and garden soil to make it seem like something that would actually have nutrient value for the plants. I'm definitely not putting food plants in this stuff. I'm afraid to know what is in it.