How to grow your own tiny forest
Garden soil tends to pack too much making it hard to water and I had more trouble with damping off when I used it. I'm sure this would depend on your soil, however, so experiment. One way or another, there's no reason to buy potting soil. Make your own! If you eat, you can make compost.I now aim to make most of my own soil so I know what I'm getting. This means planning, labor, and delayed gratification on my part, but huge cost savings. Building your own soil from multiple types of organic matter saves you money, but you can expect to wait a year while it makes itself (Still, it's so cool that it makes itself!).