For decades, we’ve been tossing eggshells into compost bins or worse—straight into the trash—thinking their work was done the moment breakfast was served. But what if I told you those brittle, calcium-packed shells still have some serious game left in them? Hanging a bag of crushed eggshells in your garden isn’t just a quirk pulled from your eccentric aunt’s gardening diary—it’s a legitimate, time-tested technique that punches well above its weight in the fight for a healthy, pest-free plot.
Calcium: The Soul Food of Soil
Think of calcium as the
