March 4, 2010 5:43:41 AM PST
If you do raised beds, which I highly recommend, here are some soil mixes suggested by this web site: http://www.foodforeveryone.org/gardening_course/
This will give you soil that you will have to add nutrients for the plants. One advantage of this soil, no weeds or introduced pathogens from the unknown material.
Avoid like the plague, buying top soil from local suppliers unless they can guarantee that it has been sterilized. I have all kinds of new weeds because I went the easy route and bought some supposed garden soil from a local supplier.
Here is the soil:
Recommended Combinations of Materials
1. 40% sawdust, 40% perlite, 20% sand;
2. 45% coffee hulls, 55% pumice;
3. 40% peat moss, 40% perlite, 20% sand;
4. 40% pine bark, 30% perlite, 30% sand;
5. 75% sawdust, 25% sand.
Paul.