Eggshells aren’t just kitchen waste; they’re a hidden gem for gardeners.
Their uses are surprisingly versatile, from deterring pests to enriching soil.
Hanging them in a mesh bag makes them even easier to utilize. This eco-friendly hack is simple, effective, and budget-friendly.
Discover how eggshells can transform your garden while reducing waste.
Repels Common Garden Pests

Eggshells in a mesh bag effectively deter pests like slugs and snails.
The sharp edges of crushed shells irritate these soft-bodied invaders, discouraging them from venturing near your plants.
Hanging the bag keeps the eggshells dry and sharp, preserving their effectiveness.
When you notice pest activity, simply shake out some shells around vulnerable plants, creating a protective ring without the need for harsh chemicals.
Deters Deer from Grazing

Deer are known to feast on garden plants, leaving behind half-eaten blooms and trampled soil.
Surprisingly, the smell of eggshells can help deter them. Hanging eggshells in your garden emits an odor that deer find unpleasant, encouraging them to move on to other areas.
This natural barrier protects your flowers and vegetables without chemical repellents, making it both eco-friendly and effective.
Attracts Beneficial Birds

Birds are some of the best natural helpers a garden can have. They eagerly feast on insects that harm plants.
Putting up a mesh bag of eggshells in your garden catches their attention and provides them with a vital source of calcium, especially during nesting season.
Birds use crushed shells to strengthen their eggshells. Position the bag near trees or bird feeders to create a welcoming haven for these winged visitors.
Improves Soil Quality Over Time

Eggshells, made up of over 90% calcium carbonate, can naturally regulate soil pH when they break down in acidic conditions.
This reaction turns them into a calcium-rich fertilizer that promotes a healthier growing environment for plant roots while offering a natural solution for preventing blossom end rot, a recurring issue caused by calcium deficiency in many plants.
Hanging a mesh bag in your garden allows you to easily sprinkle crushed shells where needed, ensuring your soil stays balanced, and your plants thrive in optimal conditions.
Helps Protect Soil Structure

Crushed eggshells, when spread around plants, can act as a light mulch.
This layer may help reduce the impact of heavy rain on soil, minimizing splash erosion around delicate seedlings and keeping the soil surface more stable.
While not a primary solution for large-scale erosion issues, eggshells can contribute to preserving the integrity of garden beds, especially in combination with other mulching materials.
Reliable Composting Tool

Eggshells are a sustainable addition to your compost pile, providing a slow-release source of calcium as they break down.
Crush the rinsed and dried shells directly in a mesh bag before adding them to your compost.
This keeps things neat and helps the shells break down faster, ensuring they enrich the compost, making it more nutrient-dense and beneficial for your garden’s soil.
Deters Cats from Digging

While cats often dig in garden soil, leaving messes in flower beds or vegetable patches, they’re not fond of the rough texture of crushed eggshells sticking to their paws.
Sprinkling these shells around your plants creates a natural barrier discouraging curious cats from digging.
This simple trick keeps your garden undisturbed while ensuring no harm to the curious felines.
Minimizes Waste in Landfills

Repurposing eggshells in your garden is a simple yet effective way to promote sustainability.
Instead of discarding them, you can use eggshells for a variety of gardening benefits, from enriching the soil to deterring pests.
This keeps your garden eco-friendly and gives new life to materials that would otherwise end up in the trash.
Promotes Worm Activity

Worms live on calcium, and eggshells provide them with a rich source of this essential nutrient.
This helps worms thrive by supporting their digestive process. As they consume the crushed shells, they break them down further, enriching the soil with calcium and other minerals.
This natural process promotes healthier soil, making it more aerated and nutrient-rich for your plants.
Adds a Decorative Element

Hanging a mesh bag of eggshells in your garden can be a surprisingly charming addition.
Whether draped from a tree branch or hanging on a fence, it offers a rustic, eco-friendly touch that enhances the natural appeal of your space.
Beyond its aesthetic appeal, it serves several practical purposes, too, making it both decorative and functional.
Promotes Root Development

Eggshells help promote strong root development, which is crucial for plant health.
They create a favorable environment for roots to spread and grow deeply when added to the soil.
This improved root structure allows plants, especially the fast-growing varieties, to access more nutrients and water, supporting better overall growth.
Plants like tomatoes, eggplants, peppers, ivy, hydrangeas, roses, and ferns thrive in soil enriched with eggshells.
Enhances Pink Blooms

Eggshells can be particularly beneficial for plants like hydrangeas, especially when you want to encourage pink blooms.
Eggshells create a more alkaline environment, promoting the flowers’ vibrant pink color.
However, this method won’t work for blue hydrangeas, which thrive in acidic soil.
If you have blue hydrangeas, it’s best to avoid using eggshells, as they can shift the color towards a less desirable hue.
Easy and Inexpensive Solution

Using eggshells in your garden is not only effective but also incredibly affordable.
Rather than purchasing expensive soil additives or pest control products, you can simply repurpose your kitchen waste.
Hanging crushed eggshells in a mesh bag takes minimal effort and costs nothing, making it a simple, budget-friendly way to boost your garden’s health while reducing waste.
How to Make and Use Eggshell Fertilizer
- Wash your eggshells.
- When dry, grind the shells into a powder using a food processor, mortar and pestle, or rolling pin. Use a mask to avoid breathing in any eggshell powder.
- Sprinkle the powder around your plants. Stir it into the soil for faster absorption.
If you’re using a big batch of eggshells at once, try adding one or two dozen clean eggshells to a gallon of boiling water.
After letting the solution sit overnight, strain the eggshells and water your plants with a few cups of this water twice a month.