Decorative plants (i.e., your collection of succulents) don’t need as much calcium as food-growing plants, but all plants will benefit from the minerals in eggshell tea. “It’s kind of like an all-purpose fertilizer, and the plant will pull up what it can use, what it’s in need of,” Savio said.

Are eggshells good for potted plants?

Using eggshells in potted plants is an organic way to add calcium to the soil. Eggshells are primarily composed of calcium carbonate that can provide your indoor plants with the calcium they need. … Prepare the eggshells before adding them to the soil so that calcium is available for absorption by the plant’s roots.

How do you fertilize plants with eggshells?

Boil a gallon of water, and then add 10 clean and dry eggshells to it. For a stronger brew, add the shells of up to 20 eggs. Let the shells sit in the water overnight, and then strain the water. Pour the concentrate directly onto the soil to give plants a boost of calcium and potassium.