Cool, wet weather brings slugs out in troves, just in time to munch on newly sprouting green leaves. To battle them try sharp, coarsely ground eggshells, which irritate the undersides of soft bellied critters like slugs and snails. Ground eggshells are a great alternative to diatomaceous earth. Simply sprinkle them on top of the soil around vulnerable plants and reapply after a rain.
Everyone knows eggs have a distinct odor. Fortunately for gardeners, deer really don’t like the smell of eggs. Balcony Garden Web suggests spreading crushed eggshells around the garden to help keep deer at bay.
Blossom end rot, caused by calcium imbalance, is common in tomatoes, peppers, and eggplants. Since eggshells contain a good portion of calcium, they make a great fertilizer for plants prone to blossom end rot. Martha Stewart suggests crushing four dried eggshells up and adding them to the soil around the plant at the time of planting. As the eggshells break down, the plants will take up the calcium.
Eggshells aren’t only a great addition to soil around tomatoes, peppers, and eggplants. Because of their high mineral content, they are a great addition to soil in general. Dr. Mercola says that sufficient calcium levels in the soil ensure healthy plant cells overall. Eggshells also contribute magnesium and other minerals to the soil. Balance is the key, however. It’s always best to test your soil before applying fertilizer of any kind.
Eggshells are a great addition to compost. It’s helpful to clean, dry, and crush them beforehand so they break down quickly.
Save egg cartons and eggshells to use as starter pots for your seeds! Clean and boil the eggshells first, and carefully puncture the pointed end of the egg to allow for drainage. Fill eggshells with pre-moistened seed starting mix and place them back in the egg carton. Then, plant your seeds. Once seedlings are big enough, crack the eggshells to transplant in your garden. The eggshells can be crushed and added to the soil or added to your compost bin.
Eggshells are a great way to improve drainage in container plantings. Instead of rocks, Seeds Now suggests adding broken eggshells to the bottom of a planter to allow for drainage. Not only will the container be lighter and easier to handle, but there will be improved air circulation as well. Plus, the eggshells will break down and contribute nutrients to the plant. You’ll have to replace the soil and eggshells every season or two, but this is generally best-practice anyway.
Do you have a neighborhood cat that enjoys using your garden bed as a litter box? One Good Thing by Jillee recommends eggshells as the cure. Stepping on broken eggshells should be enough to keep the cats out.
Admittedly, eggshells can take awhile to break down in the compost bin. So, making compost tea using eggshells may be more satisfying. SF Gate suggests boiling a gallon of water and adding ten to twenty clean and dry eggshells to it. Let the eggshells steep overnight, then strain the liquid. The water, now infused with nutrients such as potassium and calcium, makes a great liquid fertilizer.
Eggshells aren’t only beneficial to the garden, but also to the gardener! In the garden, minor injuries are bound to happen. And believe it or not, the membrane of an egg is said to have some pretty incredible healing abilities. The Alternative Daily suggests putting this wet membrane on splinters and cuts to speed healing.
Birds help control in your garden, so it’s a good idea to invite them over! Bird Watcher’s Digest suggests spreading pieces of clean, dried eggshells around your yard. You could mix it with birdseed, as well. Birds, especially females after laying their eggs, are attracted to the calcium supply.
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