Of All things... Gardens.

The official recommendation is to dump it on concrete or hard ground in a train an inch wide and however long; ignite with a long match.
I never saw anything in my job in fertilizer R&D that would indicate nitrocellulose and nitroglycerine were available to plants or that there were soil microorganisms that would break them down into water soluble forms.

My young teen boys love "old gunpowder disposal day". We make little piles or long trails, and occasionally toss a few fingerfuls into the fire pit to watch the sparkles. And so far my eyebrows have always grown back!

I would not use on food plants, but many have stated it does well on flowers and shrubs. I prefer to do as others above have or even just use a large glass ashtray/candy dish. have even used some to start the briquets in my charcoal chimney starter

From what I understand, long ago "dump it on your flowers" was sorta a tongue in cheek comment because of the nitrogen in gunpowder and nitrogen is supposed to be good for plants. Dunno, 'cause I got a "brown thumb"...

Make Art!

Look at Gun Powder Art on YouTube
https://www.youtube.com/results?search_query=gunpowder+art+on+wood+

My experience with dumping powder on my lawn was that it did nothing.

From experience , it is good for corn and grass only. Otherwise you run the risk of having either plants growing very tall with no flowers, fruit or vegies or no plants at all.. Think of it as a very high nitrogen fertilizer like 45-0-0 or ammonium nitrate. I stand up wind and throw a small handful at a time to disperse it over a large area and then water it in.
The problem is to get it to disperse evenly so it will feed plants but not too concentrated to cause fertilizer burn.

There was a member who is an expert on fertilizer, he said, repeatedly, powder sucks as fertilizer

I broadcast it widely over the lawn just to get rid of it. Never tried to light my lawn on fire at a later date so all it seems to do is dissapear over time.
Would not use it on a vegtable garden just because of unknowns.

WeekendReloader said:

Make Art!

Look at Gun Powder Art on YouTube
https://www.youtube.com/results?search_query=gunpowder+art+on+wood+

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Sorry I have nothing to add @Captain Quack but dang, that gunpowder art is pretty awesome!!!!

I've always dumped mine in the garden. Been doing it for 30 years. It breaks down super super quick after watering. The 'maters love it.

This may sound crazy but, I wonder if you can use random smokeless to make sparklers? They light in open air so there's no danger of explosion. Roll long (12-14") bamboo skewers in Elmer's glue, leave at least 5" for a handle, let dry to tacky and roll in powder. Repeat to build layers - four times maybe? Let dry a couple of days to harden and light.

Okay, now I have to try it...

Pour it down ant holes in the yard, then light em up. Works better than harsh language.

Captain Quack said:

Let us know how that works out GeoDudeFlorida. I'm curious.

Captain Quack.

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And post video.

GeoDudeFlorida said:

This may sound crazy but, I wonder if you can use random smokeless to make sparklers? They light in open air so there's no danger of explosion. Roll long (12-14") bamboo skewers in Elmer's glue, leave at least 5" for a handle, let dry to tacky and roll in powder. Repeat to build layers - four times maybe? Let dry a couple of days to harden and light.

Okay, now I have to try it...

Click to expand...

Add some copper, iron filings and/or fine ground table salt to the mix for colors. It works fairly well. I had some contaminated IMR 4831 that I tried a similar procedure with attempting to make cannon fuze. It made a passable sparkler. Made better fuze when making a thin train with sawdust retardant wrapped in a half width piece of duct tape.