Plant Growth: It's used for lowering the pH of a high alkaline soil for accessing soil's nutrients. It's known to improve lawn care. In horticulture, it can be mixed with compost and dug into soil to create a store. Ferrous sulfate can also be used as lawn conditioner. It can also be used to eliminate silvery thread moss.
Pigment and Craft: Ferrous Sulfate can be used to stain concrete to a yellowish rust colour. It can be used to stain maple wood a silvery hue.
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