Eggshells are a serious environmental problem—with an estimated seven million metric tons of eggshell waste produced every year. That's roughly equivalent to the amount of plastic waste that annually ...

Eggshells have many garden uses. They can help nourish the soil, change the pH, and kill pathogens. However, they're not proven to help with this garden task.

Grind eggshells into a fine powder to help them break down quickly in garden soil. We have a short growing season in eastern Washington, so gardening can be a challenge. We have to make efficient use ...

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