I ran across this picture, which sums it up nicely. The organic content can be even higher than 5% if they are not washed out.
Is this just another garden myth, or is there something to it?
Eggshells in garden myth. This garden myth is busted. Firstly for their calcium content, the outer shell of the egg is almost 94% calcium carbonate. It's true that blossom end rot is a sign of calcium deficiency in fruits (tomatoes, peppers, zucchini, etc).
A very popular gardening myth claims that coarsely crushed eggshells are very sharp and that slugs would tear their bodies open trying to cross them. It is a myth that eggshells deter slugs. Plenty of people think so, but the short answer is, no:
So, let’s put it in the garden! Her picture shows multiple snails climbing right over the eggshells with no problem. Another garden myth recommends spreading crushed eggshells in the vegetable garden to cure blossom end rot with all that calcium that they leach into the soil.
I know you've read on pinterest, or in the farmer's almanac that they do—it's a myth—but they don't. As mentioned before, eggshells are mostly calcium carbonate, and calcium is necessary for your garden soil. They need a lot of calcium to produce eggs and their digestive system will break eggshells down.
Adding eggshells to a tomato plant’s planting hole prevents blossom end rot. This organic matter contains nitrogen in the form of proteins, which is very useful to plants after it decomposes. If you don’t have enough calcium, your soil won’t be able to support plant life and growth.
We’re also told that houseplants remove air toxins and other interesting feats. Eggshells are very handy in the garden. Eggshells won’t stop slugs from eating your plants, period.
I did that before becoming a master gardener, and those eggshell chips are in the garden, unchanged, 3 years later. Therefore, by surrounding a plant susceptible to slug damage with a ring of eggshells, you can protect it, because no slug would dare try to cross such a barrier. Eggshells can be used in place of diatomaceous earth.
In theory, crushed eggshells are so sharp that slugs and snails would hurt themselves climbing over them. Every year we throw out thousands of egg shells, and those shells go right into the land fill where they set and contribute nothing to society but build up the ever growing pile of trash. Better to save those eggshells for the compost and try a method that really works.
That said, some people swear by it, so give it a go if you’re looking for a natural deer repellent. Once dried, you can crush… or pulverize in your blender to a fine powder. I like to think of it as the unsung hero of the garden.
Putting egg shell flakes around the base of plants will prevent slug damage. And, it’s not entirely a myth. Blossom end rot is a disfiguring black spot on the bottom of a tomato.
So, are eggshells good for your garden? Adding eggshells to a tomato plant’s planting hole prevents blossom end rot. Yes, grandma was right, slugs do not like to crawl over the jagged surface of sharp eggshells so putting a barrier of crushed (not ground too finely) egg shells is a great deterrent.
Eggshells in the garden don't repel slugs, won't kill insects, and don't prevent blossom end rot. I like to think of it as the unsung hero of the garden. So, when you add crushed eggshells to your garden, you’re contributing large amounts of needed calcium.
We are all aware that plants need npk nitrogen, potassium and phosphorous but they also need calcium and other minerals to prevent disease like blossom end rot in tomatoes, peppers and eggplant. The one exception where eggshells do break down is very finely ground eggshells added to acidic soil. Yes, they really do work.
Some people believe that crushed eggshells can be used to form snail and slug barriers. People seem to be under the impression that the slugs won’t want to crawl over the sharp eggshells because of their “soft” bodies. We toss our clean eggshells in the blender and pulverize in a fine powder.
Eggshells consist of a hard outer shell, and a soft inner white skin. You've fallen prey to a garden myth. Yet eggshells are quite useful in adding calcium to homemade fertilisers, or you can simply make calcium water by steeping dried eggshells in water for a couple of days, and then using the strained water for your plants, including houseplants.
I mean it seems to make sense right? Eggshells are highly rich in calcium, thus, when mixed into the soil at the right proportion and with the suitable method, they can create incredible impact, all useful for your plants, including the tomato plants. Plus, leaving whole eggshells in your garden may attract small mammal pests to your garden.
4 reasons to use eggshells in the garden #1: Eggshells are an excellent component that deserves to go right into your garden soil and not into the tomato plants. Yes, that does sound a bit cannibalistic, but chickens actively seek out anything containing calcium, even their own egg shells.
Shells scattered around the plants would therefore build defensive walls. Popular garden myths (folklore, misinformation) tell us to use common household products to solve garden problems. Posted on july 16, 2018 by mgnv webmaster.
Based on an intern project by rachel vecchio, certified master gardener. Using eggshells in the garden is one of the most prominent #gardenmyths i see on social media. The poster explains that she tried to use eggshells to keep slugs away.
While there are lots of tall tales in the world of green thumbs, using eggshells in the garden is no mere myth; Eggshells & blossom end rot. The advice to add egg shells to the garden or compost pile is very common.
Our favorite way to use eggshells is as a pest deterrent. One truly useful thing you can do with eggshells is to feed them to chickens. The inner skin contains the organic matter.
As to the common garden myth that eggshells can be used to control slugs, read more about that here. It’s easy to understand why this gardening myth refuses to die. Worse yet, if the shells have any residue left on them they can actually attract slugs!