Keeping weeds out of seed trays.
I put potting soil in trays, plant seeds water wait and all I get are weeds . How to treat potting soul to eliminate weed seeds and prepare soil for flower seeds.
Oakland County Michigan
Commercial potting soils should be weed free already. But, if you had an open bag exposed to the outdoors, seeds could have gotten into the mix.
Here is how to prepare potting soil at home-