defense.
5. Eggshells Can Eventually Add Calcium to the Garden
Eggshells are made largely from calcium carbonate, which is why gardeners have been adding them to soil and compost for generations.
Calcium is an important plant nutrient involved in healthy cell walls and developing plant tissue.
But there’s an important catch:
Plants cannot immediately absorb calcium from large pieces of eggshell.
Eggshells need time to weather and break down before their calcium becomes more available in the soil. Large shell pieces can remain visible for months or even longer.
That’s
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