Instead of throwing away eggshells, why not use them to benefit your garden and home? Eggshells are composed of 95% calcium carbonate, the same material found in teeth and bones. This makes them a great natural resource for plants, animals, and even people.

If you consume a lot of eggs—especially if you raise chickens—you can repurpose the shells in many practical ways. Here are four clever ways to make the most of eggshells.
1️⃣ Use Eggshells to Grow Seedlings Indoors
Starting seedlings in eggshells is an eco-friendly alternative to plastic containers. Here’s how to do it:
- Take an egg carton and place empty eggshell halves in each section.
- Fill the shells with soil and place your seeds inside.
- Once the seedlings germinate and grow strong enough, plant them directly in the garden—shell and all!
- The eggshells will decompose, adding calcium to the soil and enriching plant growth.
2️⃣ Use Eggshells as Garden Mulch
Eggshells can be used as a natural mulch to improve soil quality:
- Crush the shells into small pieces.
- Sprinkle them over your garden soil.
- The shells slowly decompose, allowing for better aeration and water drainage while also providing a steady calcium source for plants.
Tip: The finer the crushed shells, the faster they will break down!
3️⃣ Use Eggshells as a Calcium Source for Plants
Certain plants, like tomatoes, peppers, broccoli, squash, and cabbage, need extra calcium to prevent blossom end rot, a disorder caused by calcium deficiency.
To use eggshells as a plant supplement:
- Crush the shells into powder.
- Sprinkle them around the base of your plants.
- Over time, the shells will break down and fortify the soil with much-needed calcium.
4️⃣ Use Eggshells as Chicken Feed 🐔
If you raise chickens, eggshells can help boost their calcium intake, leading to stronger eggshells in future lays. A lack of calcium may even cause hens to eat their own eggs!
To prepare eggshells as chicken feed:
- Dry the eggshells completely.
- Lightly crush them.
- Spread them out on a baking sheet.
- Bake at 275°F (135°C) for 10 minutes until they become brittle.
- Crush them again into small pieces before mixing them into your chickens’ feed.
Eggshells are an incredible natural resource that can enhance your garden, improve plant health, and support your livestock. Instead of tossing them in the trash, use these simple methods to reduce waste and nourish your environment! 🌱♻️


