Originally Posted by FrankenMauser
Time for my obligatory bi-annual reminder:
It is illegal to dispose of smokeless powders in any way that can contaminate a body of water (that includes runoff of "fertilizer"). In fact, it is illegal to dispose of it in any way other than a controlled burn.
So, potted plants?
I would not eat any so-fertilized plants (not smokeless, anyway, but black powder is pretty organic, I think). Nor would I be inclined to use it as a fire started for a barbeque. But it does make a nice demonstration for the neighborhood kids (though it might upset some parents).
Frankenmauser, I am not disbelieving your advice, but a citation would be nice.