"There's no downside," says McDonough, adding that DIY compost without eggshells is often too acidic for a vegetable garden.

One of the primary reasons gardeners use eggshells is to add calcium to the soil, which is an essential nutrient for plant growth. However, eggshells decompose very slowly, which means the calcium ...

The water used to boil eggs contains valuable nutrients such as calcium, magnesium, and potassium, beneficial for plants, ...

Egg shells can be used as plant food for the likes of vegetable crops, including potatoes, cucumbers, peppers, courgettes, ...