What Plants Like Eggshells? How Eggshells Benefit Plants?

by Anna

Eggshells are not just a breakfast byproduct or a waste item destined for the compost bin. They are a valuable resource that can benefit plants in numerous ways. Rich in calcium and other essential minerals, eggshells can improve soil fertility, prevent blossom end rot in tomatoes and peppers, deter pests, and even act as a natural fertilizer. Understanding which plants benefit most from eggshells and how they contribute to plant health is essential for any gardener or farmer looking to optimize their yields and promote sustainable gardening practices.

Understanding the Benefits of Eggshells for Plants

Eggshells are composed primarily of calcium carbonate, along with small amounts of other minerals like magnesium, phosphorus, potassium, and trace elements beneficial for plant growth. When eggshells are crushed and added to the soil, they slowly release these minerals over time, providing a steady supply of nutrients to plants. This gradual release makes them an excellent source of long-term soil enrichment, particularly in calcium-deficient soils.

One of the primary benefits of eggshells for plants is their ability to prevent calcium deficiency-related disorders such as blossom end rot. Blossom end rot commonly affects tomatoes, peppers, and other fruiting vegetables, causing the fruits to develop dark, sunken lesions at their blossom ends. This condition is often attributed to a lack of calcium in the soil, which disrupts cell wall development in the fruits. By incorporating crushed eggshells into the soil, gardeners can mitigate this problem by ensuring an adequate supply of calcium for their plants.

Furthermore, eggshells can help balance soil pH levels. While eggshells are primarily composed of calcium carbonate, they also contain small amounts of magnesium, which can help neutralize acidic soils. By raising the pH level of acidic soils, eggshells create a more hospitable environment for a wide range of plants, particularly those that prefer slightly alkaline conditions.

Plants That Benefit from Eggshells

While all plants can benefit from the nutrients provided by eggshells to some extent, certain types of plants tend to respond particularly well to their application. These include:

Tomatoes and Peppers: As mentioned earlier, tomatoes and peppers are prone to blossom end rot, making them prime candidates for eggshell supplementation. Incorporating crushed eggshells into the planting hole or mixing them into the soil around these plants can help prevent calcium deficiency and reduce the risk of blossom end rot.

Cruciferous Vegetables: Plants in the brassica family, such as broccoli, cabbage, and kale, have high calcium requirements for optimal growth. Adding crushed eggshells to the soil before planting these vegetables can help meet their calcium needs and improve overall plant health.

Root Vegetables: Root crops like carrots, radishes, and turnips also benefit from the calcium and other minerals provided by eggshells. These minerals promote strong root development and help prevent common issues like root rot.

Fruiting Trees and Shrubs: Fruit-bearing trees and shrubs, including apple trees, berry bushes, and citrus trees, can benefit from eggshell amendments. Calcium is essential for fruit development and can help improve the quality and yield of the harvest.

Ornamental Plants: Flowers and ornamental plants can also benefit from the nutrients found in eggshells. Incorporating crushed eggshells into the soil around ornamental plants can promote healthy growth and vibrant blooms.

While these are some examples of plants that particularly benefit from eggshell supplementation, virtually any plant can enjoy improved growth and vitality with the addition of crushed eggshells to the soil.

Methods of Applying Eggshells to Plants

There are several ways to incorporate eggshells into your gardening routine to benefit your plants:

Crushed Eggshells as Soil Amendment: Crushed eggshells can be added directly to the soil as a natural fertilizer and soil amendment. Simply crush the eggshells into small pieces and sprinkle them around the base of plants or incorporate them into the soil during planting. Over time, the eggshells will break down, releasing their nutrients into the soil.

Eggshell Tea: Eggshell tea is a simple and effective way to extract the nutrients from eggshells and apply them directly to plants. To make eggshell tea, rinse crushed eggshells to remove any remaining egg residue, then steep them in water for several days. The resulting liquid can be poured directly onto the soil around plants as a nutrient-rich fertilizer.

Composting: Eggshells can also be added to compost bins or piles to enrich the compost with calcium and other minerals. As the compost breaks down, the nutrients from the eggshells will be incorporated into the finished compost, which can then be used to improve soil fertility and plant health.

Mulching: Crushed eggshells can be used as a mulch around plants to help retain moisture in the soil, suppress weeds, and deter pests. Simply spread a layer of crushed eggshells around the base of plants, being careful not to pile them too thickly to allow for air circulation.

Regardless of the method chosen, incorporating eggshells into your gardening routine can provide numerous benefits for your plants and help promote healthy, thriving gardens.


Eggshells are a valuable resource for gardeners and farmers seeking to improve soil fertility, prevent nutrient deficiencies, and promote healthy plant growth. Rich in calcium and other essential minerals, eggshells offer a natural and sustainable solution for addressing common gardening challenges such as blossom end rot and poor soil quality.

By understanding which plants benefit most from eggshell supplementation and how to effectively incorporate eggshells into the soil, gardeners can optimize their yields, reduce the need for synthetic fertilizers and pesticides, and promote environmentally friendly gardening practices.

Whether you’re growing vegetables, fruits, or ornamental plants, consider harnessing the power of eggshells to nurture your garden and cultivate a thriving oasis of greenery and abundance. With eggshells as a secret weapon in your gardening arsenal, you’ll be well on your way to reaping bountiful harvests and enjoying the beauty of a flourishing garden ecosystem.

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