Calcium carbonate in eggshells neutralizes acidic soil and supplies the calcium plants need for cell wall development. Blossom-end rot in tomatoes is often a calcium deficiency. Crush finely and work into soil for faster breakdown.
Pro Tip: A coffee grinder turns eggshells to powder in seconds. Powder breaks down in weeks; whole shells can take years.
Water from boiled eggs contains calcium and trace minerals leached from the shells. Let it cool completely, then pour directly onto soil. Free liquid fertilizer you were already making. Never use if you added salt.
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Fill cardboard egg carton cups with seed-starting mix. Plant one seed per cup. When ready to transplant, tear apart and plant the whole cup — cardboard decomposes in soil and feeds the plant.
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Scatter crushed eggshells in a ring around the base of vulnerable plants. The sharp edges deter slugs and snails from crossing. Refresh after heavy rain. Also works as a cat deterrent.
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Fill a jar with crushed shells, cover with water, and steep for one to two weeks. Strain and dilute, then water plants directly. Faster-acting than dry shells and useful for targeting specific deficient plants.
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The Weekly Scramble
One fact — One joke — One recipe.
