The recipe for this safe weed killer is:

• One gallon vinegar
• two cups Epsom salts
• 1/4 cup hand dish detergent

I mixed 3/4 of these up in a vinegar bottle with one quart missing, and placed some into my gardening spray bottle.  I relabeled the vinegar bottle WEED KILLER, and added the date.

 I sprayed the weeds on part of the  sidewalk.  You can see where it is foamy, and reflective down to the end of the iris.  We’ll see how this goes.  I was threatening to rain, so I only treated a small part of the sidewalk.