Eggshells are a popular folk method for growing healthy, vigorous garden plants like tomatoes. But is there any proof to back up those benefits? Here's a look at whether eggshells are good for plants, ...

Eggshells and coffee grounds are not recommended for direct use in gardens and are better suited for compost piles. Coffee grounds contain chemicals like caffeine that can harm some plants and may ...

Gardener with basket of egg shells spreading crushed shells around tomato plant - VH-studio/Shutterstock A quality eggshell contains about 2.2 grams of calcium carbonate, the compound that gives them ...

If you're a big breakfast eater, you probably go through a ton of eggshells. But, of all the different ways to use eggshells instead of throwing them out, fertilizer is the best choice. Eggshells are ...