soil mix recipe for containers
I have purchased a City Pickers garden kit. I would like to mix my own soil for the container. The instructions say the main ingredients should be sphagnum peat moss and/or coir, plus vermiculite and/ or perlite. They say not to use forest by-products such as bark, forest humus, sawdust, or things that are partially composted. I'm not sure what proportions of the recommended ingredients to use. Any information would be helpful.
There are many recipes on the Internet. Most recipes I've seen include compost. Including only the ingredients mentioned on the kit would produce a potting soil with very few nutrients.
Here's a link to a Fine Gardening magazine article on this topic. It includes a video. They have a great website with a lot of very helpful videos on many gardening topics. http://www.finegardening.com/how-to/articles/potting-soil-recipes-potting-mix-containers.aspx
I would trust the information in this magazine. I don't know who produced your garden kit, but maybe their information isn't as reliable.