Although we’re encouraged to recycle and compost most of our biodegradable kitchen scraps, one of the biggest and best things to keep hold of are your egg shells. Rich in nutrients and guaranteed to break down, they may be the most helpful to come out of an animal since manure.
Egg shells as a drainage aid
This is probably my favourite use for them because I’m really not a fan of keeping stones in my pots to weigh them down. Quite often, as a container, you’ll come across plants that just detest having their roots kept sitting in water. The main cause is usually poor drainage, which comes from the soil forming a seal at the bottom of your pots and preventing water from seeping through.
Crush up your used egg shells in to pieces around 1/4 of the size of the original egg and scatter them across the bottom of your containers. What this does, is give you a great way to stop water from pooling around the roots, while adding a considerable amount of essential nutrients to the soil, but keep in mind that they are only a temporary fix until you find soil with better drainage.
Egg shells as food
Contrary to popular belief, the animal and plant kingdoms can happily co-exist. Although we throw them away as waste (which I’m not going to question, unless you enjoy crunchy omelettes), they contain calcium, great for creating and maintaining healthy plant growth.
When you’re crushing your egg shells this time, get them as small as possible to speed up the breakdown and absorption in to your plants. Tomatoes, peppers and the vast majority of the solanum genus will really benefit from this and you’ll have a lot more rich foliage.
Interestingly, egg shells are ~90% calcium carbonate. For those of you who like use garden lime, you’ve just found a really inexpensive (arguably free if you buy lots of eggs anyway) source of lime.
Egg shells as a pesticide
One of the biggest nightmares when growing leafy greens is waking up to a garden full of half-eaten cabbage and slime everywhere. Slugs, snails, caterpillars and the like are usually one of your greatest obstacles, but their design is also a massive flaw.
Because they have to slither along the ground with only a mucous membrane for protection, laying egg shells around your plants will stop them in their tracks. They’ll either realise how much effort it will take to get to their meal and head off elsewhere, or die trying to conquer your jagged pass.
The great thing about this, is that it encourages animals higher up the food chain to visit your garden more often as all of those lifeless slugs littering the floor are too good to miss out on. Eventually you’ll be in a situation where the predators will keep watch over your plants and eat the pests before they even get to your leaves.
Walking on eggshells needn’t be a problem for gardeners!




















