Iron Sulfate as a Concrete Stain
My concrete Platonic solids stained with iron sulfate. I’m not a big fan of concrete in the garden. It raises soil alkalinity (a problem for us, here in the Southwestern US) and it prevents rain from infiltrating into the ground. That being said, concrete is occasionally useful and/or unavoidable. But I also don’t like the color of bare concrete, nor can I afford the high price of concrete stains. Thankfully there’s a...