I'm actually using this in my yard right now and it works. A bit slower than Roundup but much better for the environment. Kills weeds in about 48 hours. I don't use Dawn instead we use Seventh Generation dish soap.
Got Weeds? Use Vinegar Got Weeds? Use Vinegar: Homemade Weed Killer 1 gallon of white vinegar 1/2 cup salt Liquid dish soap (any brand) Empty spray bottle Put salt in the empty spray bottle and fill it the rest of the way up with white vinegar. Add a squirt of liquid dish soap. This solution works best if you use it on a hot day. Spray it on the weeds in the morning, and as it heats up it will do its work.
Whether you have a vegetable garden, rose garden or weed garden, here is the best round up of gardening tips and ideas that you've probably never tried! All of these little tricks are resourceful ideas for a beginner or even the novice green thumb.