I know that soapy water can be used to clean plants and fight bugs. DOn't think I would use anything greasy or really dirty, but otherwise don't see how it could hurt. Dear Anon, This method seems to work for her. This is also a way to save on the water bill, which may be important to her. I thought that dish soap made the water wetter, if that is such a thing.
Surface tension is broken.
When you wet peat moss or soil that are very dry, adding a couple of drops of soap to the water helps. Before posting a message, please be sure you are in the appropriate category. No advertising is allowed on HGTV's message boards. Do not post messages that blink, scroll, or contain wingbats, colors, or large fonts. Off-topic postings will be deleted at our discretion.