Not the way to do it! I have agricus spores off of a portabello that was particularly delicious but doubt you really want to pasturize horse manure and make a go of composting it. I suggest that you get a mushroom growing kit and start with a big block of culture rather than trying to pick up from square one. Google it.

This is just a suggestion clear glue spray or spray on varnish then frame it in a wooden frame so it will look more professional welcome by

I did in Tampa Bay a few years ago. They were a bit of a pain. I did get a few, but man are they picky. I actually cannot remember what kind they were. I guess that is because I decided to never bother again. that said, if you can get the correct climate, the kits they sell (grow in supplied box, etc) are good. I have done that a few times over the winter and kept the kit in the garage. Got lucky on the temperature and got tons of mushrooms. I grew white button and giant portabella. They were the best tasting mushrooms I have ever had.

I know it might seem odd to you but after these autumn rains I have found small mushrooms growing around in the garden. I just realized I could try to "sow" some mushrooms spores for the fall colour. I don't mean necessarily the edible ones, just the showiest. Has anyone experience growing mushrooms in the garden? Are there any species you'd suggest? I mean, mushrooms are a sign of a healthy shade garden and many of them improve the soil as well as the other plants. Thanks.