Mvespa or others--About the rusty nail water/iron
Hi, I just read the following tip here:
"I keep a plastic juice bottle with rusty nails and water in it, I call it my rusty nail bottle. Plants need iron, so the rusty nail water is the cheapest way to get it to them. I just go grab it and water all the plants with the water and just keep filling it up over and over again!"
Do *all* plants benefit from the extra iron? It sounds great, but I don't want to water the "wrong" flowers this way.
Thank you for clarifying, :)