outdoor growing posibility

[boh]

In my last grow i birthed my cakes onto a bed of wet vermiculite instead of pearlite.  when my mushrooms grew and the caps opened they naturally droped spores all over.  so a couple weeks ago i dumped out the old spore covered verm on the side of my house.   so my question is, is there any posibility of having some mushrooms grow in the next few months or is there any key ingredients missing?

[anno]

Some substrate for the mushrooms to grow on wouldn't hurt....straw  or dung or alike.