Eggshells aren't kitchen waste. How gardeners use them to help plants thrive

Eggshells offer valuable calcium for plant cell walls and fruits. They gradually decompose, enriching garden soil over time. Adding crushed eggshells helps prevent blossom end rot in certain vegetables. Eggshells can also be used as biodegradable seed-starting pots for seedlings. This practice effectively reduces household waste and supports plant health.

Raccontata daeconomictimes.indiatimes.com