Daily gardening tips: Use crushed eggshells to deter slugs and snails

Gardening can be a rewarding and enjoyable activity, but it often comes with its fair share of challenges

Daily gardening tips: Use crushed eggshells to deter slugs and snails

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Gardening can be a rewarding and enjoyable activity, but it often comes with its fair share of challenges. One of the most common struggles gardeners face is dealing with slugs and snails that can wreak havoc on plants. These slimy creatures have a particular affinity for tender green leaves and can quickly turn a thriving garden into a slimy mess. While there are various methods to control slugs and snails, one eco-friendly and practical solution is using crushed eggshells. In this article, we will explore the benefits of using crushed eggshells and how you can effectively utilize them to keep slugs and snails at bay.

Why Use Crushed Eggshells?

Before delving into the details of how to use crushed eggshells as a deterrent, it is important to understand why they are effective against slugs and snails:

  • Abrasiveness: The rough texture of crushed eggshells acts as a barrier, making it difficult for slugs and snails to glide over them. They would rather avoid the challenge altogether.
  • Calcium: Slugs and snails do not favor environments with high calcium levels. Eggshells, being composed primarily of calcium carbonate, deter these pests from approaching your plants.
  • Nutrients: As eggshells break down, they release essential nutrients like calcium and trace minerals into the soil. This not only repels slugs and snails but also provides nourishment for your plants.
  • Cost-effective and eco-friendly: Using crushed eggshells as a deterrent is a sustainable and economical choice. Instead of resorting to chemical solutions or traps, you can repurpose waste from your kitchen to protect your garden.

How to Prepare Crushed Eggshells

Now that you understand the benefits, let's explore the process of preparing crushed eggshells:

  1. Collect eggshells from your kitchen. Thoroughly wash and dry them to remove any residual egg whites or yolks. Air-drying them for a day or two is sufficient.
  2. Once the eggshells are dry, grind them using a mortar and pestle, food processor, or blender. Aim for a texture similar to coarse sand. Alternatively, you can place the shells in a plastic bag and crush them with a rolling pin or other heavy object.
  3. Store the crushed eggshells in a clean, dry container until you are ready to use them in your garden.

Using Crushed Eggshells in Your Garden

Now that you have your crushed eggshells ready, it's time to put them to good use:

1. Create a Protective Barrier

Gently sprinkle a layer of crushed eggshells around your vulnerable plants, focusing on the base. Ensure that the layer is at least half an inch thick. This barrier will make it difficult for slugs and snails to reach your plants, effectively deterring them.

2. Refill and Maintain the Barrier

After rain or watering, the effectiveness of the crushed eggshell barrier may diminish. In such cases, replenish and maintain the barrier by sprinkling more crushed eggshells as needed. Remember, a continuous protective layer is essential to deter slugs and snails effectively.

3. Create a Slug and Snail Trap

Aside from acting as a deterrent, you can use crushed eggshells strategically to create traps. Set up small containers like plastic cups or lids in your garden, partially filled with crushed eggshells. Place them near plants that are particularly susceptible to slug and snail damage. The pests will be attracted to the container, crawl in, and find it difficult to escape due to the jagged eggshell pieces. Regularly check the traps and remove captured slugs and snails.


Dealing with slugs and snails in your garden can be a frustrating experience. However, using crushed eggshells as a natural deterrent provides an effective and environmentally friendly solution. The rough texture, calcium content, and beneficial nutrients make eggshells an excellent choice for repelling these pests while nourishing your plants. By following the steps outlined in this article, you can take proactive measures to protect your garden and enjoy the fruits of your labor.

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Daily gardening tips: day 198

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