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Introduction:
Eggshells are often thrown away without a second thought, but these calcium-rich kitchen scraps can be a powerful natural fertilizer—if used correctly. Many gardeners simply crush and scatter them, but that barely scratches the surface of their potential. This article walks you through the right way to prepare and apply eggshells to nourish your soil and boost your garden’s health.
Ingredients:
Clean, empty eggshells (any quantity)
Water
Oven or dehydrator (optional but recommended)
Mortar and pestle, blender, or coffee grinder
Airtight container for storage
Preparation:
Clean the Shells:
Rinse eggshells thoroughly to remove any egg whites or yolk. This prevents odors and reduces the risk of attracting pests.
Dry the Shells:
Spread them out on a baking tray and bake at 200°F (93°C) for 10–15 minutes, or air-dry for a few days. This step makes them easier to crush and ensures they’re fully sanitized.
Grind to Powder:
Once dry and brittle, grind the shells into a fine powder using a coffee grinder, blender, or mortar and pestle. Finer particles decompose more quickly and release nutrients faster into the soil.
Application:
Sprinkle the powder directly onto the soil around your plants, or mix it into your compost pile. For potted plants, incorporate the powder into the potting mix before planting.
Serving and Storage Tips:
Store ground eggshells in an airtight container in a cool, dry place.
Apply around plants once a month for best results.
Use in compost tea for a slow-release calcium boost.
Variation:
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